To gain insight into the lived experiences of paternal postpartum and post-adoption depression, semi-structured interviews were conducted with 4 biological and 3 adoptive fathers who self-identified as primary caregivers and experienced depression within 12 months of having or adopting their child(ren). A thematic analysis revealed commonalities and unique aspects of biological and adoptive fathers’ experiences of depression, as well as society’s influence on their experiences of depression. Commonalities included the impact of Significant Stressors and Expectation-Reality Asymmetry on
fathers’ experiences of depression, while biological fathers had difficulty being Mentally Present with their Children, and adoptive fathers had a Strong Need to Teach their Children. Fathers also described how aspects of society such as Social Expectations of Parents and their Unmet Support Needs perpetuated their depression. These findings are discussed in relation to research regarding mothers’ experiences of PPD, and their implications for practice and research are discussed.