Kostas Perrikos (Greek: Κώστας Περρίκος; 23 April 1905 – 4 February 1943) was a Greek Air Force officer and leader of the PEAN resistance movement in World War II. He is the father of the UN arms control Commissioner Dimitris Perrikos (Δημήτρης Περρίκος).
Perrikos was born in Kallimasia on the island of Chios where he received his elementary education. His family later moved to Alexandria, where he completed high school. He returned to Greece in 1925 and in 1926 he entered the Air Force Academy, which he left with a commission as a Lieutenant. Perrikos was a fervent Republican who had been dismissed from the Air Force after the failed Venizelist coup attempt in March 1935. He was married to Maria Deligiorgi, with whom he had three children.
After the outbreak of the Greco-Italian War in October 1940, Perrikos requested to return to duty. His request was granted on 23 November 1940 and he was forwarded to the front.
In June 1941, Perrikos was a founding member of the "Army of Enslaved Victors" (Στρατιά Σκλαβωμένων Νικητών, SSN), one of the first resistance groups to spring up after Greece was overrun by the Germans in April 1941. Dissatisfied by the SSN's neutrality on the crucial issue of the post-war regime in Greece (monarchy or republic), Perrikos and a number of others split off to form the "Panhellenic Union of Fighting Youths" (Πανελλήνιος Ένωσις Αγωνιζόμενων Νέων, PEAN). PEAN had a leftist political orientation, strongly opposed any return of the monarchy and insisted on active struggle against the occupying forces.