Proper Nouns that Start with X is the English language’s rarest of the lot, but it also has an interesting history and an interesting presence in names, geography, and businesses. Even if you want to build your vocabulary, discover the right name, or just want to know more, this collection of more than 200 proper nouns starting with the letter “X” will familiarize you with a world full of interesting options.
From celebrities to place names and brand names, let us discuss the “X-factor” of proper nouns!
Famous People Proper Nouns That Start With X
- Xerxes – Xerxes I was a famous Persian king.
- Xenia Goodwin – Xenia is an Australian actress and dancer.
- Xander Berkeley – Xander is a well-known American actor.
- Xuxa Meneghel – Xuxa is a Brazilian TV host and singer.
- Xian Lim – Xian is a Filipino actor and model.
- Xenophon – Xenophon was an ancient Greek historian.
- Xander Bogaerts – Xander is a professional baseball player.
- Xzibit – Xzibit is a famous rapper and TV host.
- Xi Jinping – Xi Jinping is the current president of China.
- Ximena Navarrete – Ximena is a Mexican actress and beauty queen.
- Ximun Haran – Ximun is a Basque musician.
- Xanthus of Lydia – Xanthus was an ancient historian.
- Xolani Tsetsana – Xolani is a South African artist.
- Xhevdet Bajraj – Xhevdet is a Kosovo-born poet and writer.
- Xhelal Sveçla – Xhelal is a politician from Kosovo.
- Xhafer Ypi – Xhafer was an Albanian politician.
- Xherdan Shaqiri – Xherdan is a Swiss professional soccer player.
- Xolile Tshabalala – Xolile is a South African actress.
- Ximun Haran – Ximun is a Basque musician.
- Xesco Espar – Xesco is a Spanish handball coach.
Cities and Towns Around the World Proper Nouns That Start With X
- Xiamen – Xiamen is a beautiful coastal city in China.
- Xi’an – Xi’an is home to the famous Terracotta Army in China.
- Xining – Xining is a high-altitude city in China.
- Xochimilco – Xochimilco is famous for its canals in Mexico.
- Xai-Xai – Xai-Xai is a city in Mozambique.
- Xanxerê – Xanxerê is a municipality in Brazil.
- Xirivella – Xirivella is a town in Spain.
- Xanten – Xanten is a historic town in Germany.
- Xinjing – Xinjing is a town in China.
- Xalisco – Xalisco is a town in Mexico.
- Xinyang – Xinyang is a city in China’s Henan province.
- Xalapa – Xalapa is the capital of Veracruz, Mexico.
- Xilinhot – Xilinhot is a city in Inner Mongolia, China.
- Xinyu – Xinyu is a city in Jiangxi, China.
- Xinghua – Xinghua is a city in Jiangsu, China.
- Xiaogan – Xiaogan is a city in Hubei, China.
- Xingtai – Xingtai is a city in Hebei, China.
- Xuzhou – Xuzhou is an important cultural city in China.
- Xique-Xique – Xique-Xique is a city in Brazil.
- Xove – Xove is a municipality in Spain.
Mythological and Legendary Figures
- Xanthus – Xanthus was a divine horse in Greek mythology.
- Xena – Xena is a warrior princess from popular TV lore.
- Xolotl – Xolotl is an Aztec god associated with dogs and death.
- Xenodice – Xenodice was a daughter of Priam in Greek myths.
- Xuthus – Xuthus was a figure in Greek mythology.
- Xenophanes – Xenophanes was an ancient Greek philosopher.
- Xenocrates – Xenocrates was a student of Plato.
- Xilonen – Xilonen is an Aztec goddess of maize.
- Xingtian – Xingtian is a Chinese mythological warrior.
- Xayacamach – Xayacamach was a Nahua poet in pre-Hispanic Mexico.
- Xilbalba – Xilbalba is the Mayan underworld.
- Xanthippe – Xanthippe was the wife of Socrates.
- Ximenes – Ximenes was a Spanish scholar and theologian.
- Xenocrates of Chalcedon – A noted philosopher.
- Xenagoras – Xenagoras was a Greek historian.
- Xenon – Xenon was a historical figure and a philosopher.
- Xenophilius – A legendary name in fictional works.
- Xilbalba Lords – The lords of the Mayan underworld.
- Xenophon of Corinth – A Greek Olympic victor.
- Xangô – A deity in Yoruba and Brazilian mythology.
Popular Brand and Company Names
- Xerox – Xerox is a famous printing technology company.
- Xiaomi – Xiaomi is a Chinese electronics giant.
- Xfinity – Xfinity is a brand of Comcast services.
- XFX – XFX is a manufacturer of graphics cards.
- Xcel Energy – Xcel Energy is a major power company.
- Xeneta – Xeneta provides freight benchmarking solutions.
- Xtrac – Xtrac designs motorsport transmissions.
- Xplore Technologies – Xplore specializes in rugged tablets.
- Xenith – Xenith produces sports equipment.
- XoJet – XoJet is a private aviation company.
- XFL – XFL is a professional American football league.
- Xenos Publishing – Xenos is a book publisher.
- Xenon Pictures – Xenon Pictures is a film distribution company.
- X-Acto – X-Acto is known for precision cutting tools.
- Xyron – Xyron manufactures craft adhesives.
- Xometry – Xometry is a digital manufacturing marketplace.
- XOS Digital – XOS Digital provides sports media technology.
- Xenex – Xenex makes germ-zapping robots.
- Xstrahl – Xstrahl specializes in medical radiotherapy.
- XenForo – XenForo is a popular forum software.
Historical Figures Proper Nouns That Start With X
- Xenophon of Athens – An ancient Greek historian.
- Xiahou Dun – A Chinese general from the Three Kingdoms period.
- Xiahou Yuan – Another general from the Three Kingdoms era.
- Xie An – A famous politician of the Eastern Jin Dynasty.
- Xie Lingyun – A poet from the Southern Dynasty.
- Ximen Bao – A Chinese politician and hydraulic engineer.
- Xuanzang – A Buddhist monk who traveled to India.
- Xiang Yu – A powerful warlord during the late Qin Dynasty.
- Xie Jin – A famous Chinese film director.
- Xia Gui – A prominent Chinese painter from the Song Dynasty.
- Xu Guangqi – A scholar and scientist from the Ming Dynasty.
- Xue Rengui – A legendary Tang Dynasty general.
- Xiang Zhongfa – A leader of the Chinese Communist Party.
- Xenagoras – An ancient Greek historian.
- Ximenes Doudan – A French philosopher and writer.
- Xheladin Gjoni – An Albanian politician.
- Xul Solar – An Argentine artist and writer.
- Xenophon of Ephesus – A Greek novelist.
- Xhemal Aranitasi – A former Albanian military leader.
- Xenocrates of Athens – A Greek philosopher and mathematician.
Landmarks and Geographic Features
- Xochicalco – An ancient archaeological site in Mexico.
- Xiluo Bridge – A famous bridge in Taiwan.
- Xixian New Area – A large economic zone in China.
- Xixiu Ridge – A scenic mountain range in China.
- Xikou – A historic town in Zhejiang, China.
- Xagħra – A town on the island of Gozo, Malta.
- Xiling Gorge – A section of the Three Gorges in China.
- Xcaret Park – A famous eco-archaeological park in Mexico.
- Xiangshan Park – A popular park in Beijing, China.
- Xuanwu Lake – A scenic lake in Nanjing, China.
- Xueshan Range – A mountain range in Taiwan.
- Xiamen Botanical Garden – A large botanical garden in China.
- Xizi Bay – A coastal area in Taiwan.
- Xiang River – A major river in Hunan, China.
- Xochimilco Canals – UNESCO heritage site in Mexico City.
- Xorazm Region – A historical region in Uzbekistan.
- Xingu River – A major tributary of the Amazon in Brazil.
- Xcalak Reef – A protected coral reef in Mexico.
- Xiangzhou District – A district in Zhuhai, China.
- Xieyang Island – A small island in China’s Bohai Sea.
Fictional Characters Proper Nouns That Start With X
- Xavier Institute – The school for mutants in Marvel Comics.
- X-23 – A Marvel Comics character, also known as Laura Kinney.
- Xanadu (Shangdu) – The fabled palace in Coleridge’s poem.
- Xorn – A mutant character from Marvel’s X-Men series.
- Xehanort – A villain from Kingdom Hearts.
- Xigbar – A character from Kingdom Hearts.
- Xaldin – A member of Organization XIII in Kingdom Hearts.
- Xemnas – The leader of Organization XIII in Kingdom Hearts.
- Xena – The main character in Xena: Warrior Princess.
- Xavier (Professor X) – A leader in the X-Men comics.
- Xerxes (300) – The Persian king in the movie 300.
- Xirro – A character in various fantasy books.
- Xander Harris – A character from Buffy the Vampire Slayer.
- Xane – A shapeshifter in Fire Emblem.
- Xiomara from DC Comics – A superhero in the DC universe.
- Xenovia Quarta – A character from High School DxD.
- Xiaoyu (Ling Xiaoyu) – A fighter from Tekken.
- Xelloss – A character in the anime Slayers.
- Xavin – A Marvel Comics character from Runaways.
- Xombie – A web series featuring undead superheroes.
More Company and Brand Names
- Xena Networks – A network testing company.
- Xebec Animation – A Japanese animation studio.
- Xinhua News Agency – A major Chinese news agency.
- XPrize Foundation – A foundation that funds innovation.
- XJet – A 3D printing company.
- XenServer – A virtualization software by Citrix.
- Xoriant – A software engineering company.
- Xceed Software – A software development firm.
- Xonotic – A popular open-source video game.
- Xeneta – A freight shipping company.
- Xybernaut – A wearable computer technology brand.
- Xero – A cloud accounting software company.
- Xactware – A property insurance software firm.
- Xebia – An IT consulting and training firm.
- Xcor Aerospace – A former private aerospace company.
- Xing Tea – A beverage company selling iced tea.
- XTRA Lease – A major trailer leasing company.
- Xandros – A software company known for Linux-based products.
- XPower – A brand specializing in power tools.
- Xceedium – A cybersecurity solutions company.
Festivals and Cultural Events Proper Nouns That Start With X
- X Games – An extreme sports competition.
- Xichang Lantern Festival – A traditional event in China.
- X Festival – An electronic music festival in the UK.
- Xochimilco Flower Fair – A Mexican flower festival.
- Xiamen International Marathon – A major marathon in China.
- Xishuangbanna Water Splashing Festival – A cultural event in China.
- Xcaret Day of the Dead Festival – A vibrant celebration in Mexico.
- Xalapa Jazz Festival – A music event in Veracruz, Mexico.
- Xiamen Music Festival – A classical music event in China.
- Xingyi Wanfenglin Marathon – A race held in China.
- Xela Feria – A traditional fair in Guatemala.
- Xperience Festival – A dance music festival in Germany.
- Xangô Festival – A religious festival in Brazil.
- Xilitla Art Festival – An event celebrating surrealist art.
- Xela Independence Day Parade – A major parade in Guatemala.
- Xenon Festival – A futuristic-themed music event.
- Xcape Music Festival – A beach music festival.
- Xanthi Carnival – A famous carnival in Greece.
- Xoximilco Fiesta – A lively cultural event in Cancun.
- Xicanx Arts Festival – A festival celebrating Chicano art.
Scientific Terms and Discoveries

- Xenon – A noble gas used in lighting and medicine.
- X-ray – A form of electromagnetic radiation.
- Xylitol – A sugar alcohol used as a sweetener.
- Xylem – The plant tissue that transports water.
- Xenopus – A genus of aquatic frogs used in research.
- Xenotransplantation – The transplantation of animal organs into humans.
- Xenotime – A rare-earth phosphate mineral.
- Xylophage – An organism that feeds on wood.
- Xiphoid Process – The small cartilage at the bottom of the sternum.
- Xanthophyll – A yellow pigment in leaves.
- Xenon Tetrafluoride – A chemical compound of xenon and fluorine.
- Xerophyte – A plant adapted to dry environments.
- Xenobiotic – A substance foreign to an organism’s body.
- Xenograft – A transplant from one species to another.
- Xylocaine – A brand name for lidocaine, a local anesthetic.
- X-chromosome – One of the two sex chromosomes in humans.
- Xenarthra – A mammal order that includes armadillos and sloths.
- Xenovirus – A hypothetical virus that originates from space.
- Xenogenesis – The supposed birth of an organism unlike its parents.
- Xylodextrin – A derivative of starch used in chemistry.
Space and Astronomy Proper Nouns That Start With X
- Xena (136199 Eris) – A dwarf planet originally nicknamed “Xena.”
- X-ray Pulsar – A type of star emitting X-ray radiation.
- X-ray Binary Star – A binary star system with strong X-ray emissions.
- XTE J1118+480 – A black hole candidate in space.
- XTE J1650-500 – A discovered black hole.
- X-ray Nova – A transient astronomical X-ray source.
- XMM-Newton – An ESA X-ray observatory satellite.
- X-ray Background Radiation – Cosmic X-ray sources in deep space.
- X-class Solar Flares – The strongest type of solar flares.
- Xinglong Observatory – A major observatory in China.
- XTE J1859+226 – A star system exhibiting X-ray bursts.
- Xenophanes Crater – A crater on the moon.
- X-ray Burster – A type of neutron star in binary systems.
- Xiphias Star Cluster – A cluster in deep space.
- Xanthus Nebula – A fictional nebula in sci-fi literature.
- Xinglong Sky Survey – A space survey project in China.
- X-ray Diffraction – A method to study crystal structures.
- X-ray Emission Lines – Spectral lines seen in space.
- X-ray Luminous Galaxies – Galaxies with high X-ray emissions.
- X-shape Radio Galaxies – Galaxies with unusual radio lobes.
Animals with “X” Names
- Xerus – A type of African ground squirrel.
- X-ray Tetra – A transparent freshwater fish.
- Xenops – A small bird found in Central and South America.
- Xoloitzcuintli – A rare Mexican hairless dog breed.
- Xanthic Tiger Snake – A venomous snake species.
- Xantus’s Hummingbird – A hummingbird found in Baja California.
- Xenotarsosaurus – A dinosaur from the Late Cretaceous period.
- Xenodermus – A genus of snakes known as “dragon snakes.”
- Xenopeltis – A genus of iridescent snakes.
- Xylophagous Beetle – A beetle that feeds on wood.
- Xenopholis – A genus of South American snakes.
- Xestia Moth – A genus of nocturnal moths.
- Xylocopa (Carpenter Bee) – A large, wood-boring bee.
- Xenicus – A genus of small, New Zealand passerines.
- Xiphias (Swordfish) – A large predatory fish.
- Xenoturbella – A deep-sea worm-like organism.
- Xantusia (Night Lizard) – A genus of small lizards.
- Xylophanes Moth – A species of hawk moth.
- Xenocyon – An extinct genus of wild dog.
- Xenorhynchus – A genus of storks.
Conclusion
Exploring proper nouns that start with “X” reveals a surprisingly diverse and fascinating range of names from history, science, geography, fiction, and beyond. While “X” may not be the most common starting letter, it is deeply embedded in various cultures, languages, and disciplines. From Xerxes and Xenophon in history to X-ray technology in science, and even exotic animals like the Xoloitzcuintli, this letter carries a unique and often mysterious charm.
Whether you’re looking to expand your vocabulary, enhance your writing, or simply appreciate the richness of language, these 200+ “X” proper nouns showcase how even the rarest letters can have a big impact. Who knew “X” could be so extraordinary?

Jessica is a seasoned writer with over 5 years of experience in the Noun niche. Her expertise lies in creating impactful, well-researched, and reader-focused content. With a strong commitment to excellence, Jessica has built a reputation for delivering high-quality work that informs, engages, and inspires her audience.