| Seahaven Academy | |
| Coordinates: | 50.7871°N 0.0408°W |
| Motto: | The best in everyone |
| Type: | Academy |
| Address: | Haven Way |
| City: | Newhaven |
| County: | East Sussex |
| Country: | England |
| Postcode: | BN9 9TD |
| Local Authority: | East Sussex |
| Ofsted: | yes |
| Dfeno: | 845/4004 |
| Urn: | 140679 |
| Staff: | 100 |
| Enrolment: | 890 |
| Gender: | Mixed |
| Lower Age: | 11 |
| Upper Age: | 18 |
| Houses: | 7 |
| Colours: | Black and Orange |
| Publication: | 1 |
Seahaven Academy (formerly Tideway Comprehensive School) is a secondary school in Newhaven, East Sussex. The school's academic achievements improved considerably when the school joined the United Learning Trust in 2014, and have been judged 'Good' by Ofsted. A new Headteacher is joining the school in April 2023, Shevlyn Byroo.