Milton Klein may refer to:

• Milton L. Klein (1910–2007), Canadian politician
• Milton M. Klein (1917–2004), American historian

• Rogen Nature Reserve
• Rogentium
• Rogeonella
• Roger Abdelmassih
• Roger Abel
• Roger Abrantes
• Roger A. Cowley
• Roger Adams (disambiguation)
• Roger Aeschlimann
• Roger Agache
• Roger A. Graham
• Roger A. Hendrix Sr.
• Roger Akerstrom
• Roger Alan Dudman
• Roger Albert Bumpass
• Roger Alcocer
• Roger Allen Christian
• Roger Allen (cross-country skier)
• Roger Allen (diplomat)
• Roger Allenford
• Roger Allen François Jouret
• Roger Allen Kotoske
• Roger Allen (musicologist)
• Roger amar
• Roger Ames