Lesmahagow Priory was a medieval Tironensian monastic community located in the small town of Lesmahagow in the modern local authority area of South Lanarkshire, Scotland.

It was founded after John, Bishop of Glasgow and King David I of Scotland granted lands at Lesmahagow to Kelso Abbey with which to establish a new priory.

Control of the abbey was gradually secularized in the 16th century.

Along with Kelso Abbey, it was turned into a secular lordship in 1607 for Robert Ker of Cesford, later earl of Roxburghe.

And secondly Abbeygreen Church of the Free Church of Scotland which lies opposite the Glebe Park in Lesmahagow and was formed in 1843 by secession from the Church of Scotland and the building opened in 1844.