| Harry Dennis | |
| Birth Date: | 1903 |
| Birth Place: | Romsey, Hampshire, England |
| Position: | Midfielder |
| Years3: | 1925–1926 |
| Clubs4: | Southend United |
| Caps3: | 1 |
| Goals3: | 0 |
Harold T. Dennis (born 1903) was an English professional footballer who played as a defender for Newark Town, Grantham Town, Huddersfield Town and Southend United. He was born in Romsey, Hampshire.