Namesakes
Finnish Presidents and Prime Ministers:
1 prime minister
(prime minister) Rainer von Fieandt 1957-1958 
Nobel Prize Winners:
1 physics
(physics) Rainer Weiss 2017
Notable Filmmakers:
1 director
Rainer Werner Fassbinder 1945-1982
Notable Musicians:
1 singer
Reinhard Mey (a.k.a. Rainer) 1942-
Notable Writers:
1 author/poet, 1 playwright
Rainer Maria Rilke 1875-1926
Rainer Werner Fassbinder 1945-1982
Olympic Medalists:
5 bronze, 1 silver
(bronze) Jorma Valkama (a.k.a. Rainer) 1956 long jump
(bronze) Rainer Philipp 1976 ice hockey
(silver) Rainer Strohbach 1980 swimming - 4x200 m freestyle relay
(bronze) Rainer Osselmann 1984 water polo
(bronze) Rainer Hoppe 1984 water polo
(bronze) Rainer Henkel 1988 swimming - 4x200 m freestyle relay
Saints:
1 blessed
Blessed Raynerius Inclusus (a.k.a. Rainer) ?-1237