- Category : 1870-births
- Type : PSP
- Profile : 4/6 - Opportunistic / Role Model
- Definition : Triple Split
- Incarnation Cross : RAX Service 4
German rugby union player who competed in the 1900 Summer Olympics. He was a member of the German rugby union team, which won the silver medal. Germany was represented at the tournament by the FC 1880 Frankfurt rather than an official national team. Amrhein was the captain of the Frankfurt team at the event. He died on 20 May 1945 at age 74 in Frankfurt am Main.