Jason is a common given name for a male. It comes from Greek Ἰάσων (Iasōn), meaning "healer", from the verb ἰάομαι (iaomai) "heal, cure", cogn. with Ἰασώ (Iasō), the goddess of healing and ἰατρός (iatros), "healer, physician" (the earliest form of the word is the Mycenaean Greek i-ja-te, written in Linear B syllabic script).
The name was borne in Greek Mythology by Jason, the great Thessalian hero who led the Argonauts in the quest for the Golden Fleece.
The name is also found in the Bible, as the house of a man named Jason was used as a refuge by Paul and Silas.
Its popularity in the United Kingdom peaked during the 1970s, when it was among the top 20 male names, but it had fallen out of the top 100 by 2003.
A feminine name that sounds similar is Jacin, derived from the Portuguese-Spanish name Jacinta or the Anglicized version Jacinda, meaning Hyacinth.
Jason is the most common spelling; however, there are many variant spellings such as Jayson. Jay is the common diminutive.
 Notable people with the name
- Jason (comics), pseudonym of Norwegian comics creator John Arne Sæterøy (born 1965)
- Jason (high priest), a 2nd century BC High Priest of Jerusalem
- Jason of Cyrene (lived circa 100 BC), Jewish historian
- Jason of Nysa (lived circa 100 BC), Stoic philosopher
- Jason of Pherae (died 370 BC), King of Thessaly
- Jason of Tarsus, Saint Jason in Catholic and Orthodox traditions
- Jason Manuel Olazabal, American actor
- Jason London, American actor
- Jason Ritter, American actor, son of actor John Ritter
- Jason Alexander, an actor, writer, and comedian, famous for his role as George Costanza on the sitcom Seinfeld
- Jason Kidd, an NBA point guard
- Jason Momoa, American actor
- Jason Lee, American film and television actor, former pro skateboarder, co-founder of Stereo Skateboards
- Jason Scott Lee, Asian-American film actor of Hawaiian and Chinese descent
- Jason Newsted, former bassist for the band Metallica
- Jason Bateman, American television and film actor
- Jason Schwartzman, American actor and musician
- Jason Robards, stage and film actor. Tony Award and two-time Academy Award winner
- Jason Spezza, hockey centre for the Ottawa Senators
- Jason Varitek, former American baseball catcher for the Boston Red Sox
- Jason van Wyk, a South African composer and electronic music producer
- Jason Winston George, American actor
- Jason Zucker, American ice hockey player
- Jason McDonnell American Baseball Player
- Jason Statham, English actor, producer and martial artist
- Jason Bohn, American professional golfer
- Jason Priestley, American television and film actor
- Jason Mraz, American singer-songwriter
- Jason Giambi, American professional baseball player
- Jason Segel, American television actor
- Jason Aldean, American country singer
 Fictional characters
- ^ Ἰάσων, William J. Slater, Lexicon to Pindar, on Perseus Digital Library
- ^ ἰάομαι, Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus Digital Library
- ^ Ἰασώ, Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus Digital Library
- ^ ἰατρός, Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus Digital Library
- ^ Palaeolexicon, Word study tool of ancient languages
- ^ Acts 17:5-9
- ^ www.babynames.co.uk
- ^ Thomas W. Sheehan, Dictionary of Patron Saints' Names at Google Books. Our Sunday Visitor Publishing, 2001. "Jacinta: 'The Hyacinth Flower' (Spanish) or 'The Wearer of Purple' (Portuguese) or 'The Beautiful One' (Spanish). Jacinda: (Greek, Spanish) see Hyacinth, Jacinta."