Antonis Antoniadis (Greek: Αντώνης Αντωνιάδης, born 25 May 1946) is a Greek footballer. He scored 187 goals in a career which spanned 22 years. He started his career playing for Xanthi before moving on to Panathinaikos. Antoniadis scored his first official goal for Panathinaikos on 27 October 1968 in a 1–0 victory over Apollon Athens. When he was playing in Xanthi, he was a goalkeeper because of his height. His nickname is "The Tall".
Antoniadis scored 187 goals in 242 matches in the Greek Championship, and was top scorer five times: 1970 (25 goals), 1972 (39 – second in Europe), 1973 (22), 1974 (26) and 1975 (20). In 1971 when Panathinaikos reached the European Cup Final at Wembley, Antoniadis was the leading scorer in the tournament with 10 goals.
During the summer of 1978 he was transferred to Olympiakos where he stayed for one season, playing in 13 games and scoring 7 goals. He later went on to play for Atromitos Athens. In 1980 before he retired and became president of PSAP he went full circle and returned to Panathinaikos. Antoniadis was a very accomplished header of the ball and possessed a strong shot. He made 21 appearances and scored 6 goals for the Greek national team between 1970 and 1977. He is the vice-president of the football team of Panathinaikos since the summer of 2008.