William Frederick Sears (1868 – 23 March 1929) was an Irish Sinn Féin and later Cumann na nGaedheal politician.
[3] In January 1919, Sinn Féin MPs refused to recognise the Parliament of the United Kingdom and instead assembled at the Mansion House in Dublin as a revolutionary parliament called Dáil Éireann, though Sears did not attend as he was in prison.
He was re-elected unopposed for the same constituency at the 1922 general election, this time as a pro-Treaty Sinn Féin TD.
He died in office in 1929 and the by-election for his seat was won by Sir Nugent Everard.
In 1902 he founded the Enniscorthy Echo in co-operation with Sir Thomas Esmonde.