This article presents three studies examining whether alexithymia is associated with less perceived and network social support, whether such relationships are accounted for by reduced social skills associated with alexithymia, and whether limited social support links alexithymia to health problems. The relationships between alexithymia (Toronto Alexithymia Scale), social variables, and physical health and depression were examined in both healthy young adults and patients. Alexithymia (especially deficits in identifying and communicating feelings) was related to less perceived support, fewer close relationships, and less social skill: the social skills deficit accounted fully for the association between alexithymia and a smaller social network. Additionally, alexithymia was related to both somatic complaints and depression, but social support generally was not. It is concluded that alexithymia is associated with reduced perceived and network social support, that these associations are likely due to alexithymia-related deficiencies in social skills but that reduced social support does not account for the relationship between alexithymia and health problems.