St Mary's Church is in the town of Kirkby Lonsdale, Cumbria, England.

It is an active Anglican parish church in the deanery of Kendal, the archdeaconry of Westmorland and Furness, and the diocese of Carlisle.

Its benefice is united with those of six local churches to form the Kirkby Lonsdale Team Ministry.

In 1807 the clerestory, battlements and pinnacles were removed by Francis Webster, who added an overall roof.

Most of the stained glass is by Lavers, Barraud and Westlake, but there are also windows by Heaton, Butler and Bayne (designed by Henry Holiday), by Shrigley and Hunt and by William Wailes.

[3] The two-manual pipe organ was built in the 1860s by Forster and Andrews and rebuilt and enlarged in 1925 by Jardine and Company.

To the east of the church is a monument to the Burrow family, dating from the middle of the 18th century.

[17] Also to the west of the church is a memorial to five women who died in a fire in the Rose and Crown Inn in 1820.

It is a two-storey octagonal stone structure with round-headed doors and windows, but has lost its former roof.