Introduction
Herbert Baddeley (born 11 January 1872 in Bromley – 20 July 1931 in Cannes, France) was a British male tennis player and the younger of the Baddeley twins.
In 1891 and 1894–1896 he and his twin brother Wilfred won the Wimbledon doubles championship four times. When Wilfred was beaten in the 1896 singles Challenge Round by Harold Mahony, they both retired from lawn tennis to concentrate on their law career.
In February 1895 the brothers qualified in London as solicitors. They joined their uncle and father Thomas and E. P. Baddeley in Leadenhall Street at the family firm, founded by their great grandfather in 1790. The brothers remained partners in the firm until 1919, when they retired leaving their cousin, Cyril Baddeley, to carry on in the family name.
Grand Slam doubles finals (6)
Wins (4)
| Year | Championship | Partner | Opponents | Score |
| 1891 | Wimbledon |  Wilfred Baddeley | Joshua Pim Frank Stoker | 6-1, 6-3, 1-6, 6-2 |
| 1894 | Wimbledon | Wilfred Baddeley | Harry S. Barlow Charles Martin | 5–7, 7–5, 4–6, 6–3, 8–6 |
| 1895 | Wimbledon | Wilfred Baddeley | Ernest Lewis Herbert Wilberforce | 8–6, 5–7, 6–4, 6–3 |
| 1896 | Wimbledon | } Wilfred Baddeley | Reginald Doherty Harold Nisbet | 1–6, 3–6, 6–4, 6–2, 6–1 |
Runners-up (2)
| Year | Championship | Partner | Opponents | Score |
| 1892 | Wimbledon | Wilfred Baddeley | Ernest Lewis Harry S. Barlow | 6–4, 2–6, 6–8, 4–6 |
| 1897 | Wimbledon | Wilfred Baddeley | Reginald Doherty Laurence Doherty | 4–6, 6–4, 6–8, 4–6 |