Sir John Williams, 2nd Baronet, of Llangibby

Sir John Williams, 2nd Baronet (c. 1651 – November 1704) was a Welsh member of parliament, representing the constituencies of Monmouth Boroughs (February 1689 – 1690) and Monmouthshire (1698–1704).

He was one of the Williams baronets. He succeeded Sir Trevor Williams, 1st Baronet and was succeeded by Sir Hopton Williams, 3rd Baronet.