Stardom 5★STAR Grand Prix 2026 in Sapporo ~ Day 1

5★STAR Grand Prix 2026 in Sapporo ~ Day 1 was a professional wrestling event promoted by World Wonder Ring Stardom, held on August 8, 2026 at Chateraise Gateau Kingdom Sapporo in Sapporo, Hokkaidō, Japan. It served as the tenth show for the company's annual round-robin singles tournament.