What about lambs?
I can’t stand the neighbor’s stupid barking dog, who is a large dog with a crazy loud bark, I don’t understand how they can stand to be in the same house with that, it’s bad enough being next door.
The sound of something scurrying around in the attic. Then that same thing scratching on the other side of the attic door, yearning to breathe free. And the cats, on this side of the door, howling. Eventually, the unknown monster gave up and disappeared, never to be identified. There is, supposedly, no opening from the attic to the outside.
Dogs are like farts. You don’t mind when they’re your own.
Cats going “hurk hurk” will wake me immediately to go find and deal with the mess. Of course, this can have a comedy side. Once, with our previous cat, I was awakened by that sound, managed to locate the cat (challenging in very little light without my glasses on). He was on the headboard, in “Snoopy playing vulture” position, his head right over DH’s face. I’d never seen my husband levitate before. (giggle) The cat was deposited on hard floor just in time, to his evident irritation. 
Loathe the sound of someone chewing, especially if they can’t be bothered to close their mouth completely. That one can make me gag.
Whistling has me wanting to braid the offender’s lips. I also dislike opera sopranos and metal guitars. Evidently, high-pitched sounds are an issue for me.
Dentist’s drill. Appt in 61 minutes. Sheeeeet.
j
Drip, drip, drip in the basement last night. Turns out the garbage disposal is toast.
A couple of days ago I was in Walmart. I heard the cocking noise of a rifle. I looked over and it was an employee that was showing a rifle to a customer. But, for a little bit I didn’t know that this was okay. I would rather not hear that sound in a public place.
I will also chime in on a pet barfing in the middle of the night.
How about a dog licking his feet or other body parts in the middle of the night? The slow, methodical “lick, lick, lick” sound sends me over the edge. It doesn’t even have to be in the middle of the night. Anytime is irritating.
I hate the sound of loud motorcycles or cars. Sorry Harley owners, that sound pierces my eardrums. I always wonder how the riders can stand all that racket while they’re riding.
Once I was having a wisdom tooth extraction and my dentist said, “God damn it!”
Back in the day when I was an adult leader in scouting with kids at overnight campouts, you really didn’t want to hear the sound of a tent zipper opening in the middle of the night.
Especially if you had just seen The Blair Witch Project a few weeks earlier.
My weirdest one is talking to someone and they say “Huh?” I hate that sound. It sounds like someone barfing. Goes double if they’ve asked you a question and you are answering them. You can’t listen to my answer? How many times do I have to repeat myself? I always pause and make them ask me to repeat myself, instead of saying HUH?
Preach it. I don’t know if “they” have declared misophonia a “legitimate” disorder yet but I have struggled with sounds my whole life.My biggest one is peoples’ voices. Try getting around that 
Also, slamming of things (except for, maybe shots :p). People around my office (seemingly) have to slam the phone down, slam their desk drawers shut, etc. . .
Also also, car horns that honk when the alarm is set. It’s all I can do not to yet “shut the hell up”, even though I realize what it is and can’t really be avoided.
All that being said, I’m wondering if the OP is more about the “dread of things to come” as opposed to the actual sound. In that case, yes, cat horking is also at the top of my list. A close second used to be the sound of my former boss getting ready to say something to me, which was always negative or accusatory.It started with a subtle “um” and then a slight pause “WOOKINPANUB. . .?” with an implied question mark at the end.Even on the few occasions that he didn’t say something negative, I always had the same gut reaction.
One day my husband and I were on the way into a store when one of the cars in the lot started honking for no apparent reason. As we passed it, I said “Shut up!” and it did.
There was a guy coming out of the store who saw this and asked me if I could do the same thing with his dog. 
I can think of a bunch of sounds I don’t want to hear, but the one I NEVER want to hear again is a cat fight in the bushes under my bedroom window at 3 am. I about had a heart attack.
Beep. Beep. Beep. Beep. Beep.
I clearly remember* a world in which the only thing that beeped was a car whose driver wanted to make sure they didn’t run you over. And I lived in a low-traffic area.
I still live in a low-traffic area (though not the same one.) But now everything beeps. (Even a couple of things in my own house, which I haven’t figured out how to tell not to; though I can leave them unplugged most of the time, which helps.) Everything. How can the beeps possibly call anyone’s attention to anything when everything beeps and there’s always something beeping?
And some percentage of the beeps hit a frequency that drives me right up the wall.
*yeah, yeah, get offa my lawn. At least, if you’re using something that’s beeping.
Any strange sound from the car, especially when I’m driving.
The sound of panic as it propagates in a crowd.
My fave along those lines is “the transmission never made that sound before…”
Beat.
“And apparently, it never will again, because it’s DEAD.”
“Daddy, you know how mommy always parks her car way too far over on the driveway…”
Regards,
Shodan
The sound of heinously amplified bass beats coming from a nearby car, especially when I’m stopped at a light and can’t do a goddamned thing to get away from it. Instant stabbiness ensues. I’m not sure why this particular sound drives me so mental but it definitely does. I suspect it has something to do with the low frequency vibration.
I have one cat who’s a plastic licker and sometimes he finds juuuust the perfect bit of plastic to lick lick lick lick lick forever with his raspy little cat tongue. How he’s survived to be an elderly cat is a mystery for the ages.
An ostensibly minor one that nonetheless makes me want to gag somebody. People who over-enunciate the “P” sound, as if their lips are wet. So grating!! The few I know who do that are a challenge to me since I have to steer the conversation in such a way as to try to minimize the chance they’ll choose words with “p” in them.
I hate the sound of two stroke engines, but hearing one grenade on one of those &@#$ leaf blowers would be music to my ears.
I absolutely do NOT want to hear the dogs barking or the cats meowing “Jingle Bells.”
I don’t want to hear birds tweeting it, elephants trumpeting it, or hippos farting it, either!
~VOW