In this commentary, we use the manuscripts in this volume as source material from which to highlight what we view as critical issues in integrating intersectionality with developmental science. In reading and meditating on the manuscripts, we abstracted two key themes that were evident, to some extent, in all of the manuscripts: (1) the disciplinary use of intersectionality as a theory and (2) the nature of development for an intersectional developmental science. These two themes reflect the current state of the integration of intersectionality with developmental science, in that they represent both areas of strength and success, but also areas of challenge and weakness.