Johnny Key (born 18 October 2003) is a Samoan sprinter who specializes in the 100 and 200 metres.

He is the current champion in the men's 100 m and 200 m for Samoa.

At the 2022 Pacific Mini Games in Saipan, Northern Mariana Islands he won bronze in the 100 metres,[4] silver in the 4 × 100 metres relay,[5] and bronze in the 4 × 400 metres relay.

On 14 July 2022 he was selected as part of Samoa's team for the 2022 Commonwealth Games in Birmingham.

This biographical article relating to Samoan athletics is a stub.