The 1891 Wimbledon Championships took place on the outdoor grass courts at the All England Lawn Tennis Club in Wimbledon, London, United Kingdom.

The tournament ran from 29 June until 9 July.

[1] It was the 15th staging of the Wimbledon Championships, and the first Grand Slam tennis event of 1891.

[2] Wilfred Baddeley was 19 years, 5 months and 23 days old when he won the men's singles final on 4 July.

[1] Wilfred Baddeley defeated Joshua Pim, 6–4, 1–6, 7–5, 6–0 [3] Lottie Dod defeated Blanche Hillyard, 6–2, 6–1 [4] Herbert Baddeley / Wilfred Baddeley defeated Joshua Pim / Frank Stoker, 6–1, 6–3, 1–6, 6–2 [5]