Pedophobia: An abnormal and persistent fear of babies and children. Sufferers experience anxiety even though they realize their fear is groundless. Rearing a child or being around active children can both produce anxiety.
From the Greek "pais" (child) and "phobos" (fear).
Related terms include: androphobia, an abnormal and persistent fear of men; gynephobia, a comparably irrational and excessive fear of women.