Carussa or Karoussa (Ancient Greek: Κάρουσσα), also spelt as Carusa or Karousa (Καροῦσα), also known as Polichnion,[1] was a Greek trading place (emporium) on the Black Sea coast of ancient Paphlagonia, south of Sinope, and 150 stadia from it.[2][3] It is also mentioned in the Periplus of Pseudo-Scylax as a Greek city; and by Pliny the Elder.[4] It was a member of the Delian League as it appears in tribute lists of ancient Athens.[5]
It is located near Gerze in Asiatic Turkey.[1][6]