Treatment was provided to 45 alcoholics and their spouses in one of three out‐patient behavioral treatment conditions: (1) minimal spouse involvement (MSI) (n = 14), (2) alcohol‐focused spouse involvement (AFSI) (n=12), or (3) alcohol‐focused spouse involvement plus behavioral marital therapy (ABMT) (n = 19). Subjects were followed for 18 months after treatment. Subjects in all conditions reported significant decreases in frequency of drinking and frequency of heavy drinking, and reported increased life satisfaction. This information was corroborated by independent reports of the spouses. Patterns of outcome varied across the three treatment conditions, with ABMT subjects showing gradual improvement in proportions of abstinent days and abstinent plus light drinking days over the last 9 months of follow‐up. Subjects in the other two treatment conditions showed gradual deterioration in proportion of abstinent days and abstinent plus light drinking days. Subjects assigned to the ABMT condition were less likely to experience marital separations, and reported greater improvement in marital satisfaction and subjective well‐being than the other experimental groups. Clinical and theoretical significance of these findings are discussed.