The Honourable Nancy Lyle (February 26, 1910 – 1986) was a female tennis player from the United Kingdom who was active in the 1930s.

[1] Nancy Margaret Lyle was born in London on 26 February 1910 and received education at St. Felix School in Southwold.

She learned to play tennis from her father Leonard Lyle, 1st Baron Lyle of Westbourne, an industrialist and politician who had also competed at Wimbledon.

[2] Lyle's biggest success at Grand Slam level came in 1935 when she partnered with Evelyn Dearman to win the doubles title at the 1935 Australian Championships, defeating Louie Bickerton and Nell Hall Hopman in the final in straight sets.

[2] She was a member of the British team at 1934 and 1935 Wightman Cup, the annual women's team tennis competition between the United States and Great Britain, and in both editions, she won her doubles match partnering Dearman.