| Mabel Hamblen | |
| Birth Date: | 19 September 1904 |
| Birth Place: | Fulham, London, England |
| Death Place: | Hammersmith, England |
Mabel Hamblen (19 September 1904 - 18 April 1955) was a British swimmer. She competed in the women's 200 metre breaststroke event at the 1928 Summer Olympics in Amsterdam.[1] Hamblen was the first woman to win Long Distance Champion of England for three successive years (1926–1928), swimming five miles on the River Thames from Kew to Putney.[2] She was a founding member of the Hammersmith Ladies Swimming Club, and once served as captain.