Mary Ann Mercer (1883 – 26 September 1945) was a British politician, who served as the first woman and first Labour Party Mayor of Birkenhead.
[2] Mercer stood in Liverpool Fairfield at the 1924 United Kingdom general election, taking second place with 37.1% of the vote.
[4] Mercer Road in Prenton (previously the local government Bidston and St James Ward) is named after her.
A portrait of her as Mayor by Maude Hall Neale is displayed in the Williamson Art Gallery, Birkenhead.
[2] In 2021 Mercer was included in a mural commissioned for the centre of Birkenhead, painted by artist Joseph Venning.