Konstantinos Konstantinidis (1856–1930) was an ethnic Greek merchant and one of the first to advocate for an Independent Republic of Pontus. He was born in Trapezunt, Pontus.
References
External links Pandektis.ekt.gr (Institute for Neohellenic Research): Κωνσταντίνος Κωνσταντινίδης Pontos News: Κωνσταντινίδης Κωνσταντίνος