Klaas Gerling (born January 3, 1981), simply known as Klaas, is a German DJ and record producer from Cologne.

Klaas worked under the label Scream & Shout. He has remixed songs for Dimitri Vegas and Like Mike (2016), DJ Antoine, Stromae, Armand Van Helden and Eric Morillo. He is best known for his remix of "Infinity" by Guru Josh, which topped the Belgian chart and peaked at number two on the Dutch chart in 2008. Producing "Infinity 2008" resulted in gold, silver and platinum records in a number of countries. His own release "Our Own Way" reached the top 10 in France in 2009.

As early as 2013, Klaas collaborated with Kim Petras (2023 Grammy-winning singer) on the songs "Heartbeat" and "Flight to Paris". Since 2016, Klaas has collaborated with Dimitri Vegas and Like Mike and Dimitri Vegas' wife MATTN to produce remakes of past club hits such as "Ocarina", "Cafe Del Mar", "Universal Nation" and Robert Miles' "Children" (2019). Klaas' 2018 single "OK Without You" achieved more than 40 million streams on Spotify. Another of his singles released in 2018, "Close to You", received more than 20 million streams. The collaboration with Londonbeat "I've Been Thinking About You" reached in spring 2019 #1 in the US Billboard Dance Charts. In 2021, Klaas has gained more than 5 million monthly listeners on Spotify. In January 2023, he reached the top 10 of Germany's most-streamed Dance/Electronic artists.