Benjamin Kayser (born 26 July 1984) is a French former rugby union player.

In February 2011, Kayser signed a 3-year contract with ASM Clermont Auvergne.

[4] Kayser played for France at international level, winning his first cap in their summer tour against Australia in 2008.

In 2010, Kayser was selected in the French Barbarians squad to play Tonga on 26 November.

[5] Stade Français Leicester Tigers ASM Clermont Auvergne