Otostigmus is a genus of centipedes in the family Scolopendridae. It was first described by Swedish naturalist Carl Oscar von Porat in 1876. The genus as a whole comprises around 157 species, found primarily in the Neotropics.
The genus name comes from Ancient Greek ÿá½Âà(oûs), meaning 'ear', and ÃÂÃÂïóüñ (stÃÂgma), meaning 'brand'.