Social justice requires fairness in how governments distribute resources, provide services and opportunities, and protect rights. This chapter considers fairness with respect to older people from two perspectives: (a) fairness vis-à-vis other segments of the population, or “intergenerational equity”; and (b) fairness among older adults. It proposes to rectify intergenerational inequities by adopting an “across the life span” approach to allocating resources for health, social, legal, and protective services. It further urges policy makers and program developers to design policies and programs to reflect America's demographic profile, trends, and the special needs of different age groups. In addition to ensuring greater fairness, the approach combats the counterproductive “generations at war” narrative. The chapter further calls for programs for older people to acknowledge challenges and barriers faced by older people of color; women; lesbian, gay, bisexual, transgender (LGBT); immigrants; and other socially and economically disadvantaged groups.