Bartholomew Lloyd (5 February 1772 – 24 November 1837) was an Irish mathematician and academic who served as the 27th Provost of Trinity College Dublin from 1731 to 1737.

As Erasmus Smith's Professor of Mathematics there, he promoted significant curricular reforms, including the introduction of the teaching of calculus.

John Lloyd, rector of Ferns and Kilbride, to whose care he had been given, also died shortly so that he was left to struggle for himself.

He was the first to introduce French mathematical innovations into Trinity College, including the teaching of calculus.

[3] In 1821, and again in 1823, and 1825, he was elected regius professor of Greek in the university, and in 1823, and again in 1827, Archbishop King's lecturer in divinity.

In 1831, he was elected Provost of the college, in succession to Samuel Kyle who became bishop of Cork and Ross.

A marble bust of him by Thomas Kirk stood in the library of Trinity College.