In basketball, a block (short for blocked shot) occurs when a defender deflects or stops a field goal attempt without committing a foul. The top 25 highest blocks totals in National Collegiate Athletic Association (NCAA) Division I women's basketball history are listed below. While the NCAA's current three-division format has been in place since the 1973–74 season, the organization did not sponsor women's sports until the 1981–82 school year; before that time, women's college sports were governed by the Association of Intercollegiate Athletics for Women (AIAW). Blocks are a relatively new statistic in college basketball, having only become an official statistic in NCAA women's basketball beginning with the 1987–88 season.