Fluorodiethyltryptamine (fluoro-DET or F-DET) may refer to:

5-Fluoro-N,N-diethyltryptamine (5-fluoro-DET; 5-F-DET) 6-Fluoro-N,N-diethyltryptamine (6-fluoro-DET; 6-F-DET)

See also Substituted tryptamine Fluorodimethyltryptamine (fluoro-DMT) 5-Halo-DMT Bretisilocin (5-fluoro-MET) Fluoro-α-methyltryptamine 5-Fluorotryptamine