Postřelmůvek (German: Klein Heilendorf) is a municipality and village in Šumperk District in the Olomouc Region of the Czech Republic.

The name is a diminutive form of Postřelmov, referring to the neighbouring municipality.

It lies on the border between the Mohelnice Depression valley and Zábřeh Highlands.

The first written mention of Postřelmůvek is from 1361, when the village was owned by the Olomouc Chapter.

Among the protected cultural monuments in Postřelmůvek are two rural homestead, which are well-preserved examples of local folk architecture, and the Chapel of Saint John of Nepomuk from the end of the 18th century.