{{Infobox officeholder |name = Ioannis Alevras
Ιωάννης Αλευράς |image = Ioannis Alevras.jpg |office = President of Greece
{{{1}}} Ioannis Alevras (Greek: Ιωάννης Αλευράς, 1912 – 6 April 1995) was a Greek Panhellenic Socialist Movement politician and Speaker of the Hellenic Parliament, who served as acting President of Greece in March 1985.
Before becoming a politician, Alevras was employed at the Bank of Greece. He was a prominent syndicalist and a key figure in the foundation of OTOE (Federation of Bank Employee Organizations of Greece) in 1955. OTOE united all relevant trade unions along the lines of craft unionism with Alevras at its head for several years.
Alevras was first elected to Parliament as a candidate of the Center Union in the Greek legislative election, 1963. His party won the elections in a narrow victory (138 seats out of 300, with the National Radical Union having 132) and party leader George Papandreou became Prime Minister of Greece on 8 November 1963.
Because no party had the absolute majority in the Parliament, Papandreou carried out the Greek legislative election, 1964. Alevras successfully sought re-election while his party won the elections with a landslide majority (171 seats out of 300, with the alliance of the National Radical Union and the Progressive Party only having 107 seats).