James Watson Chandler (July 18, 1801 – October 3, 1870) was a lawyer, judge, and political figure in New Brunswick.
He was born in Nova Scotia, the son of Samuel Chandler and Susan Watson, and was educated there.
He went on to study law, moved to New Brunswick around 1829 and was admitted to the bar in the same year.
He resigned his seat in 1867 after he was named judge in the courts for Westmorland, Kent, and Albert counties.
His cousin, Edward Barron Chandler, was a Father of Confederation and served as Lieutenant-Governor of New Brunswick.