Achluophobia:

Noragami:

Yukine's terrified of the night once it's gone dark, he believes there are monsters in there that he can't see.

Acrophobia:

Ajin:

Ko Nakano died for the first time when trying to change a light bulb. It's inferred that he got this phobia because of that incident.

Androphobia:

Btooom!:

Himiko saw how her friends were raped and she was almost a victim too.

Kokoro Connect:

Yui Kiriyama developed this phobia after she was nearly raped in Junior high and barely escaped.

Brontophobia:

Rave:

Elie experiences this fear right as she wakes up with her amnesia.

Genophobia:

Mars:

Kira believes that Rei and all other men in the world are dirty. She stays away from her classmates, hiding in her art.

Gynophobia:

Devil Ecstasy:

A childhood trauma has left Kusakabe Noboru, a college freshman in Tokyo, afraid of women, especially those with big breasts.

Kaichou wa Maid-sama:

Soutarou is afraid of women.

Hemophobia:

Angel Sanctuary:

Being the reincarnation of an angel (Alexiel), Setsuna can't stand seeing blood.

Nil Admirari no Tenbin:

When he was a child, Akira saw how his mother was killed. There was so much blood coming out of her body that he developed hemophobia.

[img]https://i.imgur.com/6MBFpsv.png[/img]
ᵂᵃʳᵘᶦ ᴷᵒᵗᵒ ˢʰᶦᵗᵃᶦ ᴳᵘᶦᵈᵉ | ᴳᵉⁿᵉʳᵃˡ ᶦⁿᶠᵒ | ᵂᵃʳᵘᶦⁿᵉˢˢ

A one-shot: [Mikami-kun no Himitsu](https://www.mangaupdates.com/series.html?id=120502)
Scared of:

He is scard of the dark

One of my latest favorites:
[A Good Day to be a Dog](https://www.mangaupdates.com/series.html?id=144437)
Scared of:

scard of dogs

There’s are some cases with phobias in Dr. Frost