Carlos Alberto Menditéguy (10 August 1914 – 27 April 1973) was a racing driver and polo player from Buenos Aires, Argentina. He entered 11 Formula One World Championship Grands Prix, achieving one podium, and scoring a total of nine championship points.
In polo he reached the highest possible handicap of 10. He was an all round sportsman and became a scratch golfplayer in under two years as the result of a bet with some friends.Menditeguy was buried in La Recoleta Cemetery in Buenos Aires.