Thomas Lang (Thomas Jones) is a Liverpool based singer-songwriter, best known for the jazz-tinged song "The Happy Man", which spent 3 weeks in the UK top 100 singles chart in January 1988 (peaking at no. 67). He released his debut album, Scallywag Jaz in 1987. His last album release (to date) was Versions in 1996.

Lang toured with his band throughout the late 1980s and early 1990s, and built up a loyal following, as well as appearing with Jools Holland's band on the TV show The Happening in 1990, and several residencies at the world famous London jazz venue, Ronnie Scott's.