Exposure to microaggressions can have detrimental impacts on the mental health of LGBTQ + emerging adults. Positive social relationships are a well-documented protective factor that help to buffer the impact of adversity on mental health in this population. However, the role of social relationships with pets has received minimal attention in research on LGBTQ + mental health, despite the high prevalence of pets in U.S. households. This cross-sectional study examined whether the association between interpersonal microaggressions and depressive symptoms among LGBTQ + emerging adults varied as a function of attachment to pets across three domains: love, emotion regulation, and personal growth. We recruited 163 LGBTQ + emerging adults (18-21 years) who lived with a cat and/or dog within the past year (98.8% sexual minority, 47.2% gender minority, 37.4% racial/ethnic minority). We found that love and emotion regulation significantly moderated the positive association between interpersonal microaggressions and depressive symptoms. Specifically, this association was only significant when love and emotion regulation were at moderate or high levels. These findings have important implications for practice with LGBTQ + pet owners, as it suggests that high levels of pet attachment may amplify the relation between interpersonal microaggressions and depressive symptoms.