Constantin Budeanu (28 February 1886 – 27 February 1959) was a Romanian electrical engineer who contributed to the analysis of electric networks states and the SI system of units.

In 1903 he was admitted at the School of Bridges, Roads and Mines, obtaining his engineering diploma in 1909.

Budeanu proposed the unit electric reactive power (the term var) and he introduced the concept of deformed power in electric networks.

[1] He was awarded the Order of Labour by the communist authorities of Romania.

This article about a Romanian engineer, inventor or industrial designer is a stub.