19738 Calinger, provisionally designated 2000 AS97, is a main-belt asteroid discovered on January 4, 2000 by LINEAR, the Lincoln Near-Earth Asteroid Research, at Magdalena Ridge Observatory in New Mexico, United States. The asteroid with a perihelion of 1.86 AU, has an eccentricity of 0.18, an orbital period of 1259 days (3.45 years) and is inclined by 7.7 degree to the ecliptic. This asteroid is named after Manetta Calinger who mentored a finalist in the 2003 Discovery Channel Youth Science Challenge.