Ioannis

Ioannis or Ioannes (), shortened to Giannis or Yannis (Γιάννης) is a Greek name.  

 People 
Ioannis Alevras, Greek politician (1912-1995)
Ioannis Demestichas, Greek Navy officer (1882-1960), known for his participation in the Macedonian Struggle under the name Kapetan Nikiforos
Ioannis Doukas, Greek painter (1841-1916)
Ioannis Dullardi, Flemish philosopher and logician
Ioannis Grivas, Greek politician (1923-2016)
Ioannis Kapodistrias, Greek politician (1776-1831)
Ioannis Mitropoulos, Gymnast
Ioannis Palaiokrassas, Greek politician (1934-2021)
Ioannis Petridis, Greek politician (1931-2016)
Ioannis Sarmas, Greek politician (1957-)
Ioannis Tassias, Priest (1958-2020)
Ioannis Veryvakis, Personnel in the Military (1930-2019)