The fourth season of the American comedy television series Silicon Valley premiered in the United States on HBO on April 23, 2017.

The site's critical consensus reads "Silicon Valley's fourth season advances the veteran comedy's overall arc while adding enough new wrinkles – and delivering more than enough laughs – to stay fresh.

[17] Most of the season's criticisms noticed the show's repetitiveness, but often found the series funny nonetheless.

Verne Gay of Newsday wrote, "There's a sense that we've traveled down this road paved with silicon once or twice before, but the ride is still smart, engaging, and highly informative.

[20] The fourth season was released on DVD and Blu-ray on September 12, 2017; bonus features include deleted scenes.