Thomas Strengberger (born 5 October 1975) is a former professional tennis player from Austria.

[1] A doubles specialist, Strengberger had the best performance of his career at the 1997 Austrian Open, where he and partner Thomas Buchmayer were surprise finalists, having entered the tournament as wildcards.

[2] They upset the top seeded pairing of Luis Lobo and Andrei Olhovskiy in the semi-final, but were unable to defeat Wayne Arthurs and Richard Fromberg in the decider.

[2] The Austrian did well at his home event again in 2001, making the quarter-finals, this time with Wolfgang Schranz as his partner.

Two years later, with Austria now in the World Group, Strengberger teamed up with Julian Knowle for their doubles rubber against France.