Andrew Le Mercier (1692–1764) was a French-born Protestant Huguenot leader in Boston in the 18th century and author.

Le Mercier was born in Normandy, France in 1692,[1] completing clerical studies in Geneva at the then Geneva Academy in 1715 and arrived in Boston (then in the English colony of Province of Massachusetts Bay) in 1716 recruited by André Faneuil as pastor of the Boston French Church (now 24 School Street)[1] and remained there until 1741 when the church closed.

[2] Le Mercier was a respected leader amongst the small Huguenot community that existed in New England for almost three decades.

[1] His son Andrew Le Mercier Jr would serve in the British colonial forces during the French and Indian War.

[3] Le Mercier retired after the closure of the Boston church to a farm in Roxbury, Massachusetts, and died there in 1764.