The aim of the present study was to develop and psychometrically evaluate a measure of mindful parenting (the Mindfulness In Parenting Questionnaire (MIPQ)) for use with parents of children and adolescents, ranging in age from 2- to 16-years-old. Content experts assisted in item development, and cognitive interviewing was used to revise the measure. Parents (N = 203) completed the preliminary MIPQ along with measures of parenting style, parenting practices, and mindfulness. The contemporary psychometrics approach known as the item response theory (IRT) was used to evaluate the MIPQ. Results yielded two dimensions, each of which was measured optimally using the partial credit model. The two dimensions, mindful discipline and being in the moment with the child, explained 42.3 and 43.4 % of the variance, respectively. Correlations between the MIPQ and parenting style, parenting practices, practice of mindfulness, and participant demographics provided support for construct validity. The MIPQ exhibited a positive and weak correlation with the MAAS, indicating that interpersonal and intrapersonal mindfulness are related yet separate and distinct constructs. Limitations and directions for future research are discussed.