The association between maternal anxiety during pregnancy and child development was studied prospectively in a group of 105 healthy Caucasian women and their infants. Anxiety was measured with the State-Trait Anxiety Inventory at 32 weeks’ gestation. Infant development was measured at three weeks postpartum by means of the Neonatal Behavioral Assessment Scale, and at one and two years by means of the Bayley Scales of Infant Development. Findings of the present study showed that, even when controlled for a variety of confounding variables, high maternal anxiety levels during late pregnancy were associated with lower mental developmental scores at the age of 2 years. It is suggested that especially attention related processes may be affected, and should be studied in future research. If these findings are confirmed by future research, identification of highly anxious women during gestation may provide an important opportunity to start a support program in order to optimize later infant stimulation and caretaking.