| Affiliation ID | 4133 |
|---|---|
| Full name | Ethnikos Gymnastikos Syllogos |
| Short name | Ethnikos GS |
| Place | Athina (GRE) |
| Sports | ATH/FBL/FEN/GAR/JUD/ROW/SHO/SWM/TEN/WLF/WPO/WRE |
| Notes | Founded 1893. Not to be confused with Ethnikos Piraeus. |
| Stavroula Antonakou | WPO | Olympics | 2008 | |
| Anastasios Antonopoulos | WRE | Olympics | 1912 | |
| Antonis Aronis | WPO | Olympics | 1980—1988 | |
| Andreas Asimakopoulos | SWM/WPO | Olympics/Non-starter/Referee | 1912—1936 | |
| Nikolaos Baltatzis-Mavrokordatos | WPO | Olympics | 1920—1924 | |
| Nikolaos Biris | WRE | Olympics | 1936—1948 | |
| Stelios Bismbas | ATH | Olympics/Torch Bearer | 1988—1996 | |
| Konstantinos Botasis | FBL | 1906 | 1906 | |
| Panagiotis Botasis | FBL | 1906 | 1906 | |
| Evangelos Damaskos | ATH | Olympics | 1896 | |
| Nikolaos Dekavalas | FBL/ROW | 1906 | 1906 | |
| Stylianos Dimitriou | ATH | Olympics | 1908 | |
| T. Dionysiotis | ATH | 1906 | 1906 | |
| Theodoros Foustanos | FEN | Olympics | 1924 | |
| Andreas Garyfallos | WPO | Olympics/Coach | 1968—1980 | |
| Ioannis Garyfallos | WPO | Olympics | 1980 | |
| Dionysios Georgakopoulos | SHO | Olympics | 2000—2004 | |
| Georgios Gerontakis | FBL | 1906 | 1906 | |
| Georgios Giannelis | ATH | Olympics | 2000 | |
| Konstantinos Giataganas | ATH | Olympics | 1948—1952 | |
| Georgios Grigoriou | ATH | Olympics | 1896 | |
| Antonios Gryllos | WRE | Olympics | 1948 | |
| Kyriakos Iosifidis | WPO | Olympics/Coach | 1968—2008 | |
| Sofia Iosifidou | WPO | Olympics | 2008 | |
| Omiros Iosifoglou | ATH/FBL | 1906/Non-starter | 1906 | |
| Argyris Karagiannis | ATH | Olympics | 1924—1928 | |
| Ioannis Karalogos | WPO | Olympics | 1972 | |
| Thomas Karalogos | WPO | Olympics | 1968—1980 | |
| Filippos Karvelas | GAR | Olympics | 1896 | |
| N. Katravas | SWM | Olympics | 1896 | |
| Konstantinos Kokkinakis | WPO | Olympics | 2008—2012 | |
| Dimitrios Kolyvas | WRE | 1906 | 1906 | |
| Antonios Kounadis | ATH | Olympics | 1960 | |
| Stefanos Kountouriotis | ATH | Olympics/1906 | 1906—1908 | |
| Anastasios Koutoulakis | ATH | Olympics/1906 | 1906—1908 | |
| Alexandros Kranis | ATH | Olympics | 1920—1924 | |
| Angelos Lamprou | ATH | Olympics | 1928—1932 | |
| L. Leon | ATH | 1906 | 1906 | |
| Dimitrios Loundras | GAR | Olympics | 1896 | |
| Georgios Merkouris | FBL | 1906 | 1906 | |
| Ioannis Mitropoulos | GAR | Olympics | 1896 | |
| Vangelis Moiropoulos | ATH | Olympics | 1928—1932 | |
| Emmanouil Mylonakis | WPO | Olympics | 2008—2016 | |
| Christos Ntavaris | ATH | 1906 | 1906 | |
| Georgios Pantos | FBL | 1906 | 1906 | |
| Nikolaos Papanikolaou | ATH | Olympics/Non-starter | 1928—1932 | |
| Georgios Papasideris | ATH/WLF | Olympics | 1896 | |
| Michail Paschalidis | ATH | Olympics | 1908 | |
| Fronietta Paspati | TEN | 1906 | 1906 | |
| Ioannis Patsoulis | WRE | 1906 | 1906 | |
| Christos Pierrakos | ATH | Olympics/Non-starter | 1964—1968 | |
| Maria Prevolaraki | WRE | Olympics | 2012—2024 | |
| Theofilakos Psiliakos | ROW | 1906 | 1906 | |
| Pantelis Psychas | WPO | Olympics | 1920—1924 | |
| Konstantinos Roumpesis | ATH | Olympics | 1920 | |
| Aristidis Rousias | WPO | Olympics | 1920 | |
| Savvas Saritzoglou | ATH | Olympics/Torch Bearer | 1992 | |
| Dimitrios Savvas | WRE | Olympics | 1964—1968 | |
| Konstantinos Sfikas | ATH | Olympics | 1960 | |
| Konstantinos Siriotis | FBL | 1906 | 1906 | |
| Markellos Sitarenios | WPO | Olympics | 1980—1984 | |
| Athanasios Skaltsogiannis | ATH | Olympics | 1896 | |
| Dimitrios Skourtis | ATH | Olympics | 1960 | |
| Sotirios Stathakis | WPO | Olympics | 1980—1984 | |
| Stylianos Stratakos | ATH | Olympics | 1948 | |
| Eleni Tampasi | JUD | Olympics | 2004 | |
| Anastasios Theodorakis | WPO | Olympics | 1924 | |
| Ioannis Theodoropoulos | ATH | Olympics | 1896 | |
| Mikes Tsamis | WPO | Olympics | 1920 | |
| Georgios Valakakis | FEN/SWM | Olympics/1906/Non-starter | 1896—1912 | |
| Antonios Vlontakis | WPO | Olympics | 2000—2008 | |
| Christos Vrettos | ATH | Olympics/Opening Flagbearer | 1924 | |
| Grigorios Vryonis | FBL | 1906 | 1906 | |
| Panagiotis Vryonis | FBL | 1906 | 1906 | |
| Thomas Xenakis | GAR | Olympics | 1896 | |
| Georgios Zacharopoulos | ATH | Olympics | 1924—1928 |