Awwwnt rhymes with haunt.
Ahnt rhymes with want.
So, to summarize, I’m seeing four distinct pronunciations here: Ant (like the insect); awnt (like taunt, flaunt, haunt); ahnt (something like “want”); and aynt (like ain’t).
I’m from the more southerly parts of England – have spent time in the North, but have never been aware of hearing any Briton, ever, pronounce the word as “ant”. I admit, though, that as regards spoken language I have a poor ear, and am not very perceptive – am quite ready to accept that I’ve been oblivious to what should have been obvious. Thanks – ignorance fought.
I don’t pronounce the “r” in “aren’t”. In IPA terms, “aunt” and “aren’t” are both /ɑːnt/ for me (an Australian who has lived in the north of England and in the Midwest of the United States, but who has not picked up most of the local pronunciations).
Aunt doesn’t rhyme with haunt OR want, and isn’t pronounced like ant or ain’t… Not sure if I’m describing a fifth pronunciation of aunt, or just a second pronunciation of haunt or want 
Ant. Except with Ahnt Anna. Because she insists and has a mean backhand for someone in their 90s. 
Ahhh, totally makes sense!
Naturally and by birth, “ant,” but sometime in high school the insect homophone started bugging me and I started intentionally using “ahnt”. These days, I’m too lazy to care much and too busy to remember, so it’s a crapshoot which one comes out of my mouth.
I’m black ish and I grew up in the south. GA to be exact.
Aunt can’t
Aunt want
Aunt haunt
Aunt ant
Aunt ain’t
I say “ant” but my nieces, whose mom comes from some sort of east-coast linage, say “ahnt.”
My dad likes to rib the girls behind their backs for speaking so “uppity.” What a guy.
FWIW - I grew up and live in the pacific northwest. I’m black. In my idiolect haunt, want, and aunt all rhyme.
For me it’s the opposite: “Ahnt Gladys” but we’re going to visit my “Ant” - upper Midwest - German and Scandinavian heritage.
Ant.
I’d never heard it pronounced awnt until my brother married an east cost Canadian girl. There sure seems to be an east coast correlation with awnt, whether you’re Canadian or American.
As a young child, I pronounced it the insect way. We moved to New Hampshire when I was 11 and just on the cusp of settling into my adult speech patterns. I quickly noticed that everyone around me said “awnt,” which certainly sounded prettier and in line with the spelling.
For a while it was impossible for me to use the word comfortably: If I said “ant” it sounded ugly and uneducated. If I said “awnt” I felt like a pretentious twit, since I had grown up with “ants.”
Eventually I realized I just had to make a conscious choice, so I went with “awnt.” Forty-five years later that is the only thing that sounds natural to me if I am talking about a particular person, ie Aunt Mary or Aunt Stella.
However, having spent a great deal of time in Pacific regions as an adult, I now feel that “auntie” sounds the best and most natural, so if I am using the word in the general case, I’m just as likely to say auntie as I am to say awnt.
I pronounce it “ant”. I grew in Baltimore, MD.
Wait…haunt and want rhyme when I say them!
I assumed “Ahnt” rhymed with “can’t” and “aren’t”, not “want”. But it wouldn’t surprise me f someone said “want” rhymes with either of those words.
This thread is the first time I’ve hear of the “Awwnt” pronunciation.
I grew up in CA and have always pronounced it “ant”. Most of the people I’ve met here in FL pronounce it “ont” and I’ve heard many black people say “unt” (???)
Grew up in the mid-Atlantic. Ant.