KCSO-LD (channel 33) is a low-power television station in Sacramento, California, United States, serving as the local outlet for the Spanish-language network Telemundo.

Owned and operated by NBCUniversal's Telemundo Station Group, KCSO-LD maintains studios on Media Place in the Woodlake neighborhood of Sacramento, and its transmitter is located in Walnut Grove, California.

KCSO-LD also operates translator stations KMUM-CD and KMMW-LD in Sacramento and Stockton and also relies on cable and satellite to reach the entire market.

The station was founded by country-western performer Chester Smith and his company Sainte Partners II, L.P. and first signed on the air in 1999.

On August 8, 2008, Chester Smith died of heart failure at Stanford University Medical Center in Palo Alto, California.

Serestar agreed to sell KCSO-LD, KMUM-CD, and KMMW-LD to NBCUniversal on November 28, 2018, as part of a $21 million deal.