Mabel Bowden Howard (18 April 1894 – 23 June 1972) was a well-known New Zealand trade unionist and politician. She was the first woman secretary of a male union (the Canterbury General Labourers’ Union).
She was a Member of Parliament for the Labour Party from 1943 until 1969. In 1947 she became New Zealand's first woman cabinet minister when she was made Minister of Health and Minister in charge of Child Welfare. She is remembered for waving two large pairs of bloomers in parliament in support of her successful campaign to have clothing sizes standardised.