objects (large)

megalophobia

objects (pointed)

aichmophobia

objects (sacred)

hierophobia

objects (small)

tapinophobia

objects (at the right side of the body)

dextrophobia

odour (one that has vile)

autodysomophobia

old (growing)

gerascophobia

old (people)

gerontophobia

open spaces, crowded public places
like markets, leaving a safe place

agoraphobia

opinions (others')

allodoxaphobia

opposite sex

sexophobia

otters

lutraphobia

outer space

spacephobia

overworking

ponophobia