Theodore Michel Mavrogordato (31 July 1883 – 24 August 1941) was a tennis player from Great Britain who was active during the first decades of the 20th century.

[6] Mavrogodato played for the British Davis Cup team in 1914 and won all his singles matches in the quarter- and semi-final.

In the final against Australasia he only played the doubles match together with his partner James Cecil Parke which they lost to Norman Brookes and Anthony Wilding.

In 1919, after World War I, he played in the semi-final against South Africa and won his single match against Louis Raymond.

[8] In October 1912 he won the singles title of the London Covered Court Championships defeating Ritchie in the final.

[10] In October 1919 he won the singles title of the London Covered Court Championships defeating Nicolae Mișu of Rumania in the final.

[13] In his book The Art of Lawn Tennis, Bill Tilden describes Mavrogordato's playing style: "His game is steadiness personified.

He is so small that it seems as if anyone could lob over his head, but his speed of foot is so great that he invariably gets his racquet on it and puts it back deep.

Mavro turns defence into attack by putting the ball back in play so often that his opponent gets tired hitting it and takes unnecessary chances.