Fears & Phobias: Beginning with 'r'
Radiophobia: Fear of radiation, x-rays.
Ranidaphobia: Fear of frogs.
Rectophobia: Fear of rectum or rectal diseases.
Rhabdophobia: Fear of being severely punished or beaten by a rod, or of being severely criticized. Also fear of magic. (wand)
Rhypophobia: Fear of defecation.
Rhytiphobia: Fear of getting wrinkles.
Rupophobia: Fear of dirt.
Russophobia: Fear of Russians.