Sir Henry Spelman (born Congham , ?1562; died 1641) was an English antiquary, noted for his detailed collections of medieval records, in particular of church councils.

Educated at Trinity College, Cambridge, he was called to the Bar and until 1612 acted as a public servant. His histories include Concilia Ecclesiastica Orbis Britannici and Glossarium Archaiologicum (completed by William Dugdale). His Reliquiae Spelmannianae was edited by Edmund Gibson in 1698.