Families that do not include children are largely overlooked by family scholars and in popular discourse. Yet this is one of several family forms that has grown in developed nations since the 1970s. As increasingly fewer adults choose to become parents, understanding the families they create, and the consequences of these family forms, will become even more important. Studies of childless adults reveal that they create bonds to fulfill many of the same functions that families with children fulfill. Research on how, and the extent to which, the childless “do” family without kids is reviewed and suggestions for future research are made.