Cristiano Testa (born 23 September 1973) is a former professional tennis player from Brazil.

Testa, a left-handed player, represented Brazil's Junior Davis Cup team in 1989.

He made a total of 11 Challenger doubles finals, for three titles, in Medellín, Eisenach and Santiago.

In 2000 he reached his highest doubles ranking of 109 in the world and earned a spot in the main draw of the 2000 Australian Open.

He and partner Fernando Meligeni were beaten in the first round by eventual finalists Wayne Black and Andrew Kratzmann.