The Quinisext Council (; , literally meaning, Fifth-Sixth Meeting), i.e., the Fifth-Sixth Council, often called the Council in Trullo, Trullan Council, or the Penthekte Synod, was a church council held in 692 at Constantinople under Justinian II.

The synod is known as the "Council in Trullo" because, like the Sixth Ecumenical Council, it was held in a domed hall in the