Nikos Alexiou (1960, Rethymno, Crete - 25 February 2011, Athens) is a Greek artist who specialized in visual art, contemporary art, installation art and set design for theatre and dance. He exhibited his work at personal exhibitions and group events both in Greece and abroad. Alexiou lived in central Athens until his death from cancer at the age of 51.

In 1985, Alexiou held his first personal exhibition at "Desmos" Gallery in Athens. He used basic materials and those commonly found in nature such as rock, wood, mud and water. In 1987, Alexiou continued his experimentation with natural features by venturing into their decomposition. He created Prisms, a series of works which analyzes the projection of white light into different spaces, even through rain.[11] Alexiou later created Solar Houses, minimalistic constructions of cane and reeds which share a fragile feeling of absolute geometry. Alexiou said, he was creating "an imaginable garden pavilion". Other works in this genre include: San Marco di Venezia, The Gate, and Fountain.