Frank Moser (German pronunciation: [ˈfʁaŋk ˈmoːzɐ]; born 23 September 1976) is a German retired professional tennis player.

He was a doubles specialist.

As a career highlight he beat with partner Ivo Karlović the world's top-ranked doubles team, the Bryan brothers, at the 2011 US Open – Men's doubles.

Moser won his only ATP World Tour title in San Jose in 2013.