This essay examines the connection between socioeconomic mobility and equality, and argues for two conclusions: (a) Socioeconomic mobility is conceptually distinct from three common species of equality: (1) equality of opportunity, (2) equality of outcome, and (3) relational equality. -/- (b) However, socioeconomic mobility is connected — in different ways — to each species of equality, and, if we value one or more of these species of equality, these connections endow mobility with derivative normative significance.