Lea Birch (17 January 1798 – 13 June 1868) was an English first-class cricketer.
Birch was born in January 1798 at Cartmel, Lancashire.
He played first-class cricket on two occasions for Manchester, with both matches coming against Yorkshire in 1844 and 1845 at Moss Lane.
Birch died in June 1868 at Totnes, Devon.
This biographical article related to an English cricket person born in the 1790s is a stub.