Scottish lock Hamish Bain played in Major League Rugby during the 2025 season. He represented the Chicago Hounds for his entire MLR career.

Born in Edinburgh, Bain joined the Scotland Academy system when he was 20 in 2015, and made his way through the ranks before being assigned to Edinburgh in the Pro 14 (now the URC) in 2017. Although he didn’t feature for Edinburgh, Bain was selected for the Scotland U20 team for the World Rugby U20 Championships, where Scotland finished 5th. Following his time with the U20s, Bain signed with Stade Nicois in the French D2, representing them between 2018-2020 before returning to the URC with Glasgow, earning his debut against the Ospreys during the 2020/21 season. Following a season in Glasgow, Bain headed south to play with the Jersey Reds (led by former Hounds head coach Rob Webber, playing alongside fellow Hound James Scott) in the English Championship. That year, the Reds recorded an almost-undefeated season, with a 20-1-1 record and winning the Championship.

For the 2023/24 season, Bain returned to France with Vannes in the Pro D2, where they earned promotion to the French top flight, the Top 14. On November 3rd, 2024, the Chicago Hounds announced the signing of Hamish Bain for the 2025 MLR season.