119 Althaea is a main-belt asteroid that was discovered by Canadian-American astronomer J. C. Watson on April 3, 1872, and named after Althaea, the mother of Meleager in Greek mythology. Two occultations by Althaea were observed in 2002, only a month apart.
This object is orbiting the Sun at a distance of with an eccentricity of 0.08 and an orbital period of 4.15 years. The orbital plane is inclined at an angle of 5.78ð relative to the plane of the ecliptic.
Based upon its spectrum, this is classified as an S-type asteroid. It has a diameter of around . Photometric observations made in 1988 at the Félix Aguilar Observatory produced a light curve with a period of 11.484 ñ 0.010 hours with a brightness variation of 0.365 in magnitude.