Ioannis or Ioannes ( el, Ιωάννης), shortened to Giannis or Yannis (Γιάννης) is a Greek given name cognate with Johannes and John (given name), John and the Arabic name Yahya (name), Yahya . Notable people with the name include: *John I Tzimiskes, Ioannis I, Tzimiskis, Byzantine Emperor *John Plagis, Ioannis Agorastos-Plagis (John Plagis), Southern Rhodesian flying ace during World War II *Ioannis Alevras, Greek politician who served as Speaker of the Hellenic Parliament *Ioannis Altamouras, Greek painter of the 19th century *John Aniston, Ioannis Anastassakis, professionally known as John Aniston, a Greek-born American actor *Giannis Andrianopoulos, Ioannis Andrianopoulos, Greek footballer and one of the founding members of football club Olympiacos CFP *Giannis Antetokounmpo, Ioannis Antetokounmpo, commonly known as Giannis Antetokounmpo, Greek basketball player *Ioannis Apakas, Greek painter and priest in the latter part of the 16th century to the early 17th century *John Argyropoulos, Ioannis Argyropoulos, a lecturer, philosopher and humanist, one of the émigré Greek scholars who pioneered the revival of classical Greek learning in 15th-century Italy *Ioannis Bourousis, Greek basketball player and member of Greece men's national basketball team that won the gold medal at EuroBasket 2005 *John Celivergos Zachos, Ioannis Celivergos Zachos, Greek-American physician, literary scholar, elocutionist, author, lecturer, inventor, and educational pioneer *Ioannis Chalkeus, a scholar, philosopher and figure of the modern Greek Enlightenment in the 18th century *Yanni, Ioannis Chryssomallis, known professionally as Yanni, a Greek-American composer, keyboardist, pianist, and music producer *Giannis Dalianidis, Ioannis Dalianidis, Greek film director *Ioannis Demestichas, Greek Navy officer, known for his participation in the Macedonian Struggle under the nom de guerre of Kapetan Nikiforos *Ioannis Doukas, Greek painter and one of the main representatives of the so-called 'Greek Munich School' *Jan Dullaert, Ioannis Dullardi, Flemish philosopher and logician *Ioannis Filimon, 19th-century Greek historian, militant journalist and publisher *Ioannis Frangoudis, Greek Army officer and athlete, who competed in the 1896 Summer Olympics in Athens as a shooter and became the only Greek athlete to win a gold, a silver and a bronze medal in a single Olympic *Joannes Gennadius, Ioannis Gennadios, Greek diplomat, writer, and speaker, best known for his donation of his collection of Greek books and art to the Gennadius Library *John Argyris, Ioannis Hadji Argyris, Greek pioneer of computer applications in science and engineering *Giannis Ioannidis, Ioannis Ioannidis, Greek basketball player, professional basketball coach, and politician *Ioannis Kakridis (1901–1992), Greek classical scholar *Giannis Kalatzis, Ioannis Kalatzis, Greek singer *John Kaminiates, Ioannis Kaminiates, Byzantine writer of the 10th century *Ioannis Kapodistrias (John Capodistrias), Greek politician who served as the Foreign Minister of the Russian Empire and the first head of state of independent Greece *Ioan Caragea, Ioannis Karatzas, Phanariote Greek Prince of Wallachia *Ioannis Kasoulidis, Cypriot politician *Ioannis Kolettis (1773–1847), Greek politician who served as Prime Minister of Greece *Yannis Makriyannis, Ioannis Makriyannis, born Ioannis Triantaphyllou, Greek merchant, military officer, politician and author, best known today for his Memoirs *Ioannis Metaxas, Greek general and politician *Ioannis Okkas, Cypriot football player *Ioannis Pangas, Greek philanthropist and businessman *Ioannis Paraskevopoulos, Greek banker and politician *Ioannis Rallis, Greek politician *Ioannis Samaras, Greek footballer *Yannis Smaragdis, Ioannis Smaragdis, Greek film director *Ioannis Svoronos, Greek archaeologist and numismatist *Ioannis Theofilakis, Greek shooter *Ioannis Theotokis (1880–1961), Greek politician who became Prime Minister of Greece *Ioannis Topalidis, Greek professional football manager and former player, assistant manager of the Greece national football team winning the UEFA Euro 2004 championship *Yannis Tsarouchis, Ioannis Tsarouchis, Greek modernist painter and set designer *Ioannis Varvakis, member of the Filiki Eteria and benefactor *Yanis Varoufakis, Ioannis Varoufakis, commonly known as Yanis Varoufakis, Greek-Australian economist and politician *Johnny Otis, Ioannis Veliotes, commonly known as Johnny Otis, an American singer, musician, composer, arranger, bandleader, talent scout, disc jockey, record producer, television show host, artist, author, journalist, minister, and impresario *Iannis Xenakis, Ioannis Xenakis, Greek-French avant-garde composer, music theorist, architect, performance director and engineer

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