Secoergoline is an analogue of ergoline with one or more bonds removed and may refer to:
- 3,5-Secoergoline (also known as RU-27251)
- 8,10-Secoergoline (e.g., 8,10-seco-LSD also known as NDTDI)
- 10,11-Secoergoline (e.g., 10,11-seco-LSD, CT-5252)
Other secoergolines include partial clavines like chanoclavine and paliclavine.