Petrov nad Desnou (until 1955 Petrovice nad Desnou; German: Petersdorf an der Tess) is a municipality and village in Šumperk District in the Olomouc Region of the Czech Republic. It has about 1,200 inhabitants.

The village of Terezín is an administrative part of Petrov nad Desnou.

Petrov nad Desnou is located about 6 kilometres (4 mi) northeast of Šumperk and 48 km (30 mi) north of Olomouc. It lies in the Hanušovice Highlands. The highest point is the hill Petrovský vrch at 778 m (2,552 ft) above sea level. It is situated at the confluence of the Desná and Merta rivers.

The first written mention of Petrov nad Desnou is from 1354. From 1980 to 2009, it was part of Sobotín. On 1 January 2010, Petrov nad Desnou became a separate municipality.

Historical population

Year Pop. ±% 1869 1,795 —     1880 1,913 +6.6% 1890 1,793 −6.3% 1900 1,635 −8.8% 1910 1,744 +6.7%	Year Pop. ±% 1921 1,594 −8.6% 1930 1,777 +11.5% 1950 1,161 −34.7% 1961 1,400 +20.6% 1970 1,308 −6.6%	Year Pop. ±% 1980 1,211 −7.4% 1991 1,271 +5.0% 2001 1,261 −0.8% 2011 1,195 −5.2% 2021 1,195 +0.0%
Source: Censuses

The I/11 road (the section from Šumperk to Ostrava) passes through the municipality.

Petrov nad Desnou is located on the railway line Nezamyslice–Kouty nad Desnou via Olomouc.

There are no protected cultural monuments in the municipality. A landmark is the Chapel of Saint Roch.

• Official website