Pope Anastasius may refer to:
- Pope Anastasius I, Pope from 399 to 401
- Pope Anastasius II, Pope from 496 to 498
- Pope Anastasius of Alexandria, 605–616
- Pope Anastasius III, Pope from 911 to 913
- Pope Anastasius IV, Pope from 1153 to 1154
- Antipope Anastasius