John Francis Lawlor (14 March 1934 – 20 May 2018) was an Irish Olympic athlete in track and field. He attended St. Joseph's Secondary C.B.S. in Fairview. He competed in the 1960 Olympics in Rome and the 1964 Olympics in Tokyo, finishing fourth in the men's hammer throw in 1960 with a throw of 64.95 metres (213.1 ft). In 1964 he failed to qualify for the finals, finishing 23rd in the qualifying round.

While a student at Boston University, he won the NCAA Championships in the hammer throw in 1959 and 1960, setting meet records both times (207-5/63.22 in 1959 and 209-2/63.76 in 1960).