Themos Anastasiadis (Greek: Θεμιστοκλής (Θέμος) Αναστασιάδης) (born 6 January 1958) is a Greek journalist.
Anastasiadis has worked for various newspapers, chiefly Kathimerini and To Vima and Eleftherotypia.
In 2005, alongside television journalist Makis Triantafyllopoulos, he created a new Sunday newspaper called Proto Thema. He is also the editor of the sports newspaper Protathlitis (Champion); a newspaper which supports Olympiacos, a team which he supports.
Apart from his work in print journalism, Anastasiadis has worked also on television. From 2001 to February 2006 he was the host of "Ola", a weekly humour show on Alpha TV. On this show he used to invite various personalities from Greek showbiz and highlight the many funny moments from the Greek television.
In March 2006, Anastasiadis became host of the show "OlaXXL" on ANT1 television. As of 2008, the show continues with a different name each year but containing the word "Ola".