Karl Viljo Halme (24 January 1907 – 21 October 1981) was a Finnish football goalkeeper.

[1] Halme started his career in the Helsinki working class side Jyry, playing in the Finnish Workers' Sports Federation (TUL) Championship series.

All athletes who competed at the Spartakiad were dismissed from TUL, and Halme was left without a team.

[1] In 1931, Halme switched to the ″bourgeoisie″ HJK Helsinki, which made him eligible for the national team.

[2] In the Finland squad at the 1936 Summer Olympics,[3] Halme was one of the eight former TUL players who had defected to the Finnish Football Association's side.