Female labor force participation (FLFP)in Indonesia lags behind other countries in the region andhas remained more or less unchanged since 1990. Descriptiveevidence by the same authors points to unmet childcare needsas one constraint on FLFP. In this paper, we provide thefirst estimates of the impact of childcare availability onFLFP in Indonesia. Our findings suggest that access topublic preschools leads to higher employment of mothers ofage-eligible children, but access to private preschool doesnot. Specifically, an additional public preschool per 1,000children raises employment of mothers of age-eligiblechildren by 6.9 percentage points. This represents a 13.3percent improvement from the average work participation at52 percent.