Mons Maenalus (Latin for Mount Maenalus) was a constellation created by Johannes Hevelius in 1687. It was located between the constellations of Boötes and Virgo, and depicts a mountain in Greece that the herdsman is stepping upon. It was increasingly considered obsolete by the latter half of the 19th century. Its brightest star is 31 Boötis, a G-type giant of apparent magnitude 4.86^m.

The main stars that made up Bode's version of the constellation are 14, 15, 18, 31 Boötis and 71 Virginis (see chart).^{[citation needed]}