Messor – rodzaj mrówki z podrodziny Myrmicinae opisany przez Auguste Forela w roku 1890. Obejmuje 106 opisanych gatunków.
Gatunki Messor abdelazizi Santschi, 1921 Messor aciculatus (Smith, 1874) Messor aegyptiacus Emery, 1878 Messor alexandri Tohme, 1981 Messor andrei Mayr, 1886 Messor angularis Santschi, 1928 Messor antennatus Emery, 1908 Messor aphaenogasteroides Pisarski, 1967 Messor aralocaspius Ruzsky, 1902 Messor arenarius Fabricius, 1787 Messor atanassovii Atanassov, 1982 Mrówka żniwiarka (Messor barbarus) Linnaeus, 1767 Messor beduinus Emery, 1922 Messor berbericus Bernard, 1955 Messor bernardi Cagniant, 1967 Messor bouvieri Bondroit, 1918 Messor buettikeri Collingwood, 1985 Messor caducus Victor, 1839 Messor capensis (Mayr, 1862) Messor capitatus Latreille, 1798 Messor carthaginensis Bernard, 1980 Messor caviceps Forel, 1902 Messor celiae Reyes, 1985 Messor cephalotes Emery, 1895 Messor ceresis Santschi, 1934 Messor chamberlini Wheeler, 1915 Messor clypeatus Kuznetsov-Ugamsky, 1927 Messor collingwoodi Bolton, 1982 Messor concolor Santschi, 1927 Messor decipiens Santschi, 1917 Messor dentatus Santschi, 1927 Messor denticornis Forel, 1910 Messor denticulatus Santschi, 1927 Messor diabarensis Arnol'di, 1969 Messor ebeninus Santschi, 1927 Messor excursionis Ruzsky, 1905 Messor