Krunski Venac (Serbian Cyrillic: Крунски Венац) is an urban neighborhood of Belgrade, the capital of Serbia. It is located in Belgrade's municipality of Vračar.
Krunski Venac was located along the Krunska street after which the neighborhood got its name (Serbian for "crown street"), in the northern part of Vračar. One of the best preserved sections of "Old Belgrade", Krunska street is considered to be one of the most distinguished areas in Belgrade, after the Civil Engineering Law from 1900 allowed only villa-type houses to be built in the area of Krunski Venac.
The Nikola Tesla Museum is located in the neighbourhood. On July 12, 2007 Tesla's fountain was opened on a lawn outside the Museum, marking the 115th anniversary of the "Belgrade Waterworks", the city's official plumbing and sewage company. It was made after the original project of Nikola Tesla, patented in 1913, using a pump which uses very little electricity. It took 25 years for researchers to fully understand Tesla's idea and create a fountain like this. At the time, Tesla collaborated on the design of the fountain with the famed US stained glass artist Louis Comfort Tiffany.
The name of the neighbourhood, just like the adjoining Grantovac, later fell into obscurity and is not used much today. The only official usage is for one of the exchanges of Telekom Srbija.