Gleidorf is a locality in the municipality Schmallenberg in the High Sauerland District in North Rhine-Westphalia, Germany.
The village has 1371 inhabitants and lies in the east of the municipality of Schmallenberg at a height of around 393 m. The river Lenne flows through the village. In the village centre the B 236 federal road meets the B 511. Gleidorf borders on the villages of Schmallenberg, Bad Fredeburg, Grafschaft, Holthausen and Winkhausen.
The first written document mentioning Gleidorf dates from 1072 in a charter from Grafschaft Abbey of bishop Anno of Cologne. The village used to belong to the municipality of Grafschaft in Amt Schmallenberg until the end of 1974.