|Full name||Athanasios Tsiolis|
|Date of birth||30 June 1959|
|Place of birth||Karditsa, Greece|
|Height||1.79 m (5 ft 10 1⁄2 in)|
|Playing position||Midfielder (retired)|
|* Senior club appearances and goals counted for the domestic league only.
† Appearances (Goals).
As a professional footballer, he played for Anagennisi Karditsa, Larissa, Ionikos and Paniliakos. In the 1996–97 season, he was a member of the semi-professional team Asteras Amaliada, as a player-manager.
From 1996 to 2001 he worked as a semi-professional manager for Anagennisi Karditsa (twice), Nafpaktiakos Asteras (twice), Preveza and Panelefsiniakos. He is a professional manager since 2001, when he started his career at Paniliakos. In the following years he managed Kalamata, Ionikos, Levadiakos, Thrasyvoulos, Olympiakos Volou and Aris Thessaloniki.
Tsiolis, a great player at his prime years, was a Greek Football Cup winner in 1985 and an Alpha Ethniki champion in 1988 with Larissa. He also made four appearances for Greece national football team in 1988, scoring once.
- Ο ΣΑΚΗΣ ΤΣΙΩΛΗΣ ΝΕΟΣ ΠΡΟΠΟΝΗΤΗΣ ΤΟΥ ΠΑΣ ΓΙΑΝΝΙΝΑ (in Greek). pasgiannina.gr. Retrieved 5 November 2013.
- "Report: Tsiolis named new Aris manager" (in Greek). Aris Thessaloniki. 10 May 2011.
- "Sakis Tsiolis profile" (in Greek). onsports.gr.
- "Hellenic Football Federation archive of caps and goals" (in Greek). Hellenic Football Federation.
- Sakis Tsiolis profile at www.footballdatabase.eu (in English)
- Sakis Tsiolis profile at www.athlitikanea.gr (in Greek)