Zólyom county (Latin: Comitatus Zoliensis; Hungarian: Zólyom (vár)megye; Slovak: Zvolenský komitát/Zvolenská stolica/Zvolenská župa; German: Sohler Gespanschaft/Komitat Sohl) was an administrative county (comitatus) of the Kingdom of Hungary.

The county's territory was situated along the central Garam river, approximately between (excluding) Korpona and (including) Breznóbánya.

Zólyom county arose as a Hungarian comitatus in the 14th century, when most parts of the territory were conquered by the Kingdom of Hungary, from a huge royal property (the Vetusolium dominium).

In the aftermath of World War I, Zólyom county became part of newly formed Czechoslovakia, as recognized by the concerned states in 1920 by the Treaty of Trianon.

The Zvolen county (Zvolenská župa) continued to exist until 1927, but it had completely different powers etc.