Objectives <p>Two studies were conducted to evaluate the psychometrics of the Interpersonal Mindfulness in Parenting Measure for Youth (IMPM-Y)—a multidimensional tool to measure mindful parenting experienced by adolescents and young adults. A third study tested a Mindful Parenting Influence Model (MPIM) involving the relations between mindful parenting and youth’s dispositional mindfulness, self-compassion, and emotional adjustment.</p> Method <p>Study 1 collected survey data from 458 youth (aged 17 to 21) to explore the structure and psychometric properties of the IMPM-Y. In Study 2 (<i>n</i> = 669 youth aged 16 to 21&#xa0;years), the IMPM-Y structure was confirmed. Combining data collected in Studies 1 and 2 (<i>n</i> = 1109), Study 3 tested direct and indirect effects proposed in the MPIM using regression analyses. Analyses incorporated survey measures of mindful parenting, dispositional mindfulness, self-compassion, general well-being, and social anxiety.</p> Results <p>The IMPM-Y had four factors with good psychometric properties. Regression analyses revealed significant associations of mindful parenting with youth’s better general well-being and lower social anxiety. Additionally, three aspects of mindful parenting had indirect associations with youth’s well-being through either dispositional mindfulness or self-compassion: mindful listening with full attention, parental emotional non-reactivity, and child compassion. Similar findings were observed for mindful listening and child compassion in relation to youth’s social anxiety. Gender did not moderate any of these associations.</p> Conclusions <p>The IMPM-Y is a valid and reliable measure of youth’s report of mindful parenting, which plays direct and indirect roles—involving youth’s mindfulness and self-compassion—in youth’s better emotional adjustment.</p> Preregistration <p>This study was not preregistered.</p>