Maud Moyra Hazel Muir (born 12 July 2001) is an English rugby union player.

[3] In 2021, she was named as part of the England squad for the 2021 Women's Six Nations Championships as one of six development players on the side.

[4] She was a non-playing reserve in the opening two Six Nations games against Scotland and Italy.

[4] She was named in the England squad for the delayed 2021 Rugby World Cup held in New Zealand in October and November 2022.

[3] She represented the South West at age grade level and moved to the Wasps' Centre of Excellence before joining the senior team.