Kousha Navidar is a writer, host, and producer. He has hosted national shows at WNYC / NPR, has been on-air talent at PBS, a former speechwriter for a member of President Obama's cabinet, and a head of content for a division at Samsung.

He combines his insightful analysis of complex issues with deep empathy and compassion for his audience, along with levity and humor that make you feel like he’s an old friend. 

Kousha moved from Iran to New York at a very young age. Today, he lives and works in New York City.

Currently, Kousha is a host on Crash Course, one of the world’s best-known educational YouTube channel with 16M+ subscribers. He also co-hosts Climate One, a weekly radio show and podcast distributed on more than 90 NPR stations around the country.

Kousha also regularly hosts on WNYC, the nation’s most-listened to NPR station. In 2024, he was the full-time temporary host of All of It with Alison Stewart. Before that, he was a senior producer and fill-in host at the station. He regularly guest-hosted programs like The Brian Lehrer Show and Notes from America. He also helped oversee the launch of NfA, then a local program, to a national show reaching more than 100 stations.

Prior to scaling existing shows, Kousha launched them from scratch. At PBS and WGBH, he helped launch the national show Point Taken, where he developed a companion YouTube series to reach younger viewers typically outside PBS's viewership. While getting his Masters at Harvard, he launched Bad News, a YouTube series that examined pressing public policy issues for young audiences.

Kousha led content strategy and production in the private sector as the Head of Content at Samsung’s Strategy and Innovation Center. Among his projects, he was Executive Producer of the broadcast for the 2020 Extreme Tech Challenge, the world's largest competition for startups addressing the U.N.’s global sustainability goals and whose partner organizations include the U.N., Ford, and Microsoft.

As a speechwriter, Kousha has written for and advised politicians, celebrities, and executives around the country.

As a host, Kousha once wrote a sonnet for his guest and performed it on air. It was peak NPR.