Heather Warner (née Lewis, born 25 October 1993) is a Welsh racewalker.

[1][2] As Heather Lewis she represented Wales at the 2022 Commonwealth Games[3] in the 10,000 metres walk event, recording a personal best 45:09.19, in a fitth place finish.

[4] After getting married[5] she competed as Heather Warner and became the British champion after winning the 5,000 metres walk event at the 2023 British Athletics Championships, held in Manchester.

[6] She had previously won the title at the 2014 British Athletics Championships under her maiden name.

This biographical article relating to Welsh athletics is a stub.