The Maritsa is a river that runs through the Balkans.
Maritsa may also refer to:
- Maritsa Municipality, a municipality in Plovdiv Province, Bulgaria
- FC Maritsa Plovdiv, Bulgarian football club from the city of Plovdiv founded in 1921
- Maritsa, Rhodes, a village on the Greek island of Rhodes
- Maritsa Peak, peak in the South Shetland Islands
- Maritsa Iztok Complex, an energy complex near Stara Zagora, Bulgaria
- Battle of Maritsa, battle that took place at the Maritsa River near the village of Chernomen on September 26, 1371
- "Shumi Maritsa", the Bulgarian national anthem from 1886 until 1944