Trimethylserotonin (TMS) may refer to:
Bufotenidine (N,N,N-trimethylserotonin) 5-MeO-DMT (N,N,O-trimethylserotonin) α,N,O-TMS (α,N,O-trimethylserotonin) α,N,N-TMS (α,N,N-trimethylserotonin)
See also Substituted tryptamine Methylserotonin Dimethylserotonin Tetramethylserotonin Trimethyltryptamine