Lesná is a cadastral territory of Brno, Czech Republic, located in the northeastern part of the city. It has an area of 2.58 km2. The area of the today's Lesná, then still practically undeveloped, was annexed to Brno as part of the creation of Greater Brno in 1919, and since November 24, 1990 has been part of the city district of Brno-sever. Almost 16,000 people live here, which is about a third of the population of the district.