This article includes, in addition to Zach Sobiech, coverage of the activities of the band A Firm Handshake

Zachary David "Zach" Sobiech (May 3, 1995 – May 20, 2013) was an American folk rock singer-songwriter from Stillwater, Minnesota, who was a member of the band A Firm Handshake. The single "Clouds" gained extensive media attention on YouTube, prior to Sobiech's death from cancer in May 2013. It charted on the Billboard Hot 100, eventually becoming a hit also in UK, Canada and France.