Lycus, Lykos or Lycos ) may refer to:
Mythological or fictional characters Lycus (mythology), various figures in Greek mythology Karl Lykos, a Marvel Comics villain also known as Sauron Lycus, a DC Comics villain and son of Ares (DC Comics)
Rivers Lycos or Great Zab, a river of Assyria, located in modern-day Turkey and Iraq Lycus (river of Bithynia), which flows into the Black Sea (Pontus Euxinus) near Heraclea Pontica Lycus (river of Cilicia), which flows from the Pyramus to the Pinarus Lycus, now known as Kouris, in Cyprus that flows into the Mediterranean Sea at Kourion Lycus (river of Lydia), a tributary of the Hyllus river Lycus (river of Mysia), near Carseae Lycus (river of Phoenicia), which flows into the Mediterranean near Beirut Lycus (river of Phrygia), a historical river, a tributary of the Maeander Lycus (river of Pontus), modern Kelkit, a river in the Black Sea Region of Turkey and the longest tributary of the Yeşil River Platani (river), a river of Sicily sometimes also called the Lycus Lycus (river of Constantinople)
Other uses Lycus (beetle), a genus of net-winged beetles Battle of the Lycus, fought in 66 BC between the Roman Republic army of Pompey and the forces of Mithridates VI of Pontus Lycus (band) Lycos, a search engine and Web portal
See also Lycus Sulci, a feature in the Amazonis quadrangle on Mars