Triston is of Greek origin and means 'third'. It was borne by a character in Boccaccio's Decameron, who had been left on a rock by his father to die but was saved by a sea nymph. The name has gained popularity in recent years, particularly in English-speaking countries.
The name Triston experienced a significant increase in popularity during the late 1990s and early 2000s, with peaks of 23 births in 1998 and 20 births in both 1995 and 1996. However, it seems to have declined since then, with fewer than 10 births recorded annually from 2003 onwards.