William Abraham (1840 – 2 August 1915) was an Irish Member of Parliament (MP) in the United Kingdom House of Commons. He was born in Limerick. Although a Protestant in religion (a Congregationalist), he became active in Irish Nationalist politics. He was involved in the Irish Land League in 1881 and was at one stage imprisoned as a political suspect. He served as Chairman of Limerick Board of Guardians (who administered the Poor Law in their district) 1882–1883 and 1885–1886.