Sir James Reynolds (1684–1747) was an English judge who had a distinguished career in both Ireland and England, holding the office of Chief Justice of the Irish Common Pleas and subsequently Baron of the Exchequer in England. He should not be confused with his close relative (who was probably his uncle) Sir James Reynolds, junior, who was Chief Baron of the Exchequer from 1730 to 1738. He died at Castle Camps, Cambridge in 1747. He never married but shared a house for many years with his unmarried sister Judith, who had a memorial erected to him.