The MMPIs of 104 cocaine abusers in treatment were subjected to a hierarchical cluster analysis and two basic profile types emerged. Type I consisted of a spike onPdand a subspike onHyp, reflecting a rebellious, acting out character-disordered style with narcissistic traits. Type II consisted of a high-ranging, floating profile consisting of marked elevations onF, Sc, Dep, Pt, Pd, andPa, reflecting a psychiatric patient who concurrently abused cocaine. These findings were contrasted to other MMPI typological studies, and the similarities and differences were discussed.