Carlos Isaac (9 June 1924 – 3 September 2000) was an Argentine sprinter. He represented Argentina at the 1948 Summer Olympics in London. Isaac was born in Gualeguaychu, Argentina on 9 June 1924. He was entered in the 100 m and the 4x100 m relay, but did not advance past the heats in either. His personal best for 100m was 10.5 seconds, set in 1943. Issac died in Rosario, Argentina on 3 September 2000, at the age of 76.