Solarius may refer to:

• Petrus Antonius Solarius (c. 1445–1493), a Swiss Italian architect
• the blue wizard in the 1982 The Flight of Dragons animated movie
• a character in Overlord and Overlord II, an emperor
• an archbishop of Strasbourg
• the lyrics dedicated to the destiny of the Armenian nation by Alexander Varbedian
• the brother of Sirius Torijano, a widely renowned Colombian violinist

• Solar (disambiguation)