The attitudes among social workers toward labor unions are a topic of significance. Historically, social workers have had an ambivalent relationship with unions. This article analyzes the extent to which unions matter to social workers and whether unions represent the interests of professional social workers. The relationship between social work and unions is conceptualized as reciprocal in nature. Insights about social workers' current attitudes toward unions are informed through critical analysis of a recent research study that examined attitudes toward unions among social work union members. The authors discuss the potential for a collaborative progressive agenda between the social work profession and labor.