Lorna Cornell (born 3 January 1933) is a British former tennis player.

Cornell is the daughter of athlete Muriel Gunn-Cornell, who was a world record holder for long jump.

[1] Active in the 1950s and 1960s, Cornell won the Wimbledon junior singles title twice and made regular appearances at the tournaments for two decades.

Cornell married Australian tennis coach Peter Cawthorn in 1953 but towards the end of her career had remarried and was competing as Lorna Greville-Collins.

[2] Other than tennis, Cornell also excelled in long jump as a junior and was named on the list of "possibles" to represent Great Britain at the 1948 Summer Olympics.