The present study investigated the direct effects of residential mobility on children's inhibitory control and academic achievement during the preschool year. It also explored fall inhibitory control and academic skills as mediators linking residential mobility and spring achievement. Participants included 359 preschool children (49% female) studied in the fall and spring of the preschool year (73% were enrolled in Head Start). Residential mobility was significantly and negatively associated with fall inhibitory control and fall math and literacy. Significant indirect effects of mobility were found for spring math and literacy through inhibitory control and fall achievement. Specifically, the negative relation between mobility and spring math and literacy was partially explained by lower scores on fall inhibitory control and academic skills. The current study contributes to existing literature by specifying pathways linking frequent moves and achievement for young children. Policy implications are discussed. [This paper was published in "Early Education and Development," v26 n2 p189-208 2015 (EJ1050508).]