Sir Thomas Esmonde, 9th Baronet (10 December 1786 – 31 December 1868) was an Irish Whig politician. Esmonde was son of Dr. John Esmonde and Helen née O'Callan. He first married Mary Payne, daughter of E. Payne in 1812, and after her death in 1840, remarried to Sophia Maria Rowe, daughter of Ebenezer Radford Rowe, in 1856. Neither wife bore his children. He was elected Whig MP for Wexford Borough at the 1841 general election and held the seat until 1847 when he did not seek re-election. He was a member of the Reform Club and was, at some point, appointed a Privy Counsellor.