Stoke Ash is a village and civil parish in the Mid Suffolk district of Suffolk in eastern England. Located around six miles south of Diss, the village had a population of 314 in 2011. The village shares a parish council with the neighbouring village of Thwaite.

Stoke Ash is located on the A140 road, which runs between Norwich and Ipswich.

The name "Stoke" is derived from the Old English word "stoc," meaning a place or secondary settlement. "Ash" comes from the Anglian word "æsc," meaning ash tree. The name "Ash" was added to "Stoke" in the 16th century.

In 1086, Stoke Ash was recorded as "Stoches Stotas" in the Domesday Book.

There is evidence of a Roman settlement in Stoke Ash. A collection of Roman coins and pottery pieces has been found in the area. A small Roman site is located on the "Colchester to Caistor Roman road." Additionally, Roman tiles are embedded in the wall of the tower above the doorway in All Saints Church. Some military items and pieces of overseas household artifacts have also been discovered.

In 1801, the population of Stoke Ash was categorized into "those chiefly employed in agriculture, those chiefly employed in trade, manufacturing, or handicrafts, and others."

By 1831, 56 percent of the population were classified as labourers and servants, 20 percent as middle class, and 15 percent as employers and professionals. Only 2 percent were categorized as 'other'.

Kelly's Directory of Suffolk (1900) described the soil as mixed, consisting of subsoil and clay. The main crops grown were wheat, barley, and beans. The area was said to cover 1,200 acres.