| Kertu Ly Alnek | |
| Birth Date: | 14 September 1999 |
| Birth Place: | Tartu, Estonia |
| Height: | 181 cm |
Kertu Ly Alnek (born 14 September 1999) is an Estonian butterfly and freestyle swimmer.
She is 6-time long course and 9-time short course Estonian swimming champion. She has broken 4 Estonian records in swimming.[1]