• glossa (γλώσσα), a Greek word meaning tongue and is used in several English words including gloss, glossary, glossitis, etc. It includes several related words including glot- and idioglossia
• Glossa, Sporades, a village in the island of Skopelos in the Northern Sporades
• Glossa, a village in the Chania prefecture
• Glossa (Ilia), a cape in the Ilia prefecture
• Glossa (Syros), a cape in the Syros island of the Cyclades prefecture

Also a possible misspelling of Glosa, a constructed language.