Harry S. Barlow
| Full name | Harold Sibthorpe Barlow |
|---|---|
| Country (sports) | United Kingdom |
| Born | 5 April 1860 Hammersmith, London |
| Died | 16 July 1917 (aged 57) Kennington, London |
| Turned pro | 1883 (amateur tour) |
| Retired | 1900 |
| Singles | |
| Career record | 387/101 (73.9%) |
| Career titles | 32 |
| Grand Slam singles results | |
| Wimbledon | F (1889AC, 1890AC) |
| Doubles | |
| Grand Slam doubles results | |
| Wimbledon | W (1892) |
Harry Sibthorpe Barlow (5 April 1860 – 16 July 1917) was a British amateur lawn tennis player, active at the end of the 19th century.