Gozer the Gozerian, the Sumerian god from Ghostbusters, in the final confrontation. The boys are surprised that s/he's a "girl", but clearly s/he is both.
Ray: It's a girl.
Egon: It's Gozer.
Winston: I thought Gozer was a man.
Egon: It's whatever it wants to be.
Peter: Well, whatever it is, it's gotta get by us.
In A Song of Ice and Fire, one of the faces of the Faith of the Seven, called The Stranger, is neither male nor female and signifies death.
Larry Niven's The Magic Goes Away. Roze-Kattee, the God of Love and Madness, is a hemaphrodite with a hideous appearance: a humanoid covered with shaggy, coarse hair, blazing yellow-white eyes brighter than daylight and pointed ears.
In The Dark Tower, the demon who had sex with Roland in the first book and raped Susannah in the third book could change sexes.
In Good Omens, it is stated that angels and demons are normally sexless, unless they really want not to be. Both otherworldly protagonists take the form of human males, though.
The Metrons in the Star Trek: The Original Series episode "Arena" were like this; they had an androgynous appearance and wore a shimmering dress-like garment.
Although the Judeo-Christian God is usually referred to by male personal pronouns, this is more convention than canon. Several Biblical verses show God identifying with roles which western culture would generally consider feminine. Most languages (English included) do not have any gender-neutral personal pronouns and God was referred to as "He" because most societies in which the Bible was written were patriarchal.
Inari Okami, the Shinto God of fertility, rice, agriculture, foxes, industry and worldly success, is generally considered to be neither male nor female, though like YHWH, masculine or feminine aspects are often emphasized depending on the context and the region. This is true for many other Kami as well.
Dragon magazine #34 "Choir Practice at the First Church of Lawful Evil (Orthodox): The ramifications of alignment". Several deities fit this trope: Cyrullia, who appears as a beautiful hemaphrodite, Slarsken Obel who appears as a man most of the time but as a women in matriarchal societies, and Demyuritas, who appears as a stunningly beautiful youth who can be either male or female.
1st Edition Dragon Lance Adventures supplement. The section "Gender and the Gods" says that it's not entirely clear which gender each of the deities is because legends speak of them appearing as either gender at different times. For example, Takhisis is said to appear as the female Dark Temptress or the male Dark Warrior.
Warhammer 40,000. The Chaos God Slaneesh has a nasty habit of sending haemaphroditic deamons at people. Not to mention being one itself.
Role Aids supplement Witches. The Powers worshipped by Faerie witches can appear as either male or female. In their true form they are neither.
The Despair Embodied in Devil May Cry2 is able to freely shapeshift between a male and female form.
Satan in the current art in the Shin Megami Tensei series has clearly visible breasts, despite otherwise being masculine.
In Mega Man Battle Network, Serenade.EXE, an otherwise normal Net Navi, looks the part, likely to emphasis hir "holy/angelic" feature (and not to mention hir vast powers). Greatly enhanced in the manga adaptation.
While all of the Daedra princes (a loose analog of Demon Lords And Archdevils, only with Blue And Orange Morality) from The Elder Scrolls universe lack a default sex, most do appear as one specific sex. Except for Boethiah and Mephala, who have both been described as being hermaphrodites.
The medieval Templar order of knights was disbanded and its leaders burnt for heresy due to allegations they really worshiped such a demon, one Baphomet, whose statues and representations conveniently turned up for the trial depicting a horned demon with beard, tits and an erection that would have pleased erection-fanciers everywhere. It is said that Baphomet, or the qualities he/she/it symbolizes, are still held in esteem by some higher degrees of Freemasonry.
Five hats means that five tropers think it is ready to publish.
You are saying that you think this draft is ready to be published. That means the description is not ambiguous,
it doesn't duplicate an existing trope, there are at least three examples, and the title makes sense.
Is that what you meant to do?
You are saying this draft has a ready-to-publish hat it does not deserve and you are taking it back.