Horse with No Name
Everything done by Gary Puckett and the Union Gap
Definitely Proud to be and American
Anything with spoken lyrics, especially when the speaker is trying for sexy or ardent or some over-the-top emotion.
I avoid hearing all of these and others that haven’t come to mind at the moment by listening to the local classical station. It saves my sanity.
Most of the songs listed in this thread don’t bother me, but that is an excellent choice for a terrible song.
I also dislike “It’s the Most Wonderful Time of the Year”, about the season where you sit around a fire, toasting marshmallows and telling ghost stories. You know – Christmas, with all the hap-happy jinglebelling and mistletoeing.
If we’re going to hate on “Proud to Be an American” (and believe me, we are!), let’s use the actual name of the song. It’s “God Bless the USA”, by Lee Greenwood. 
It’s because everything by the Eagles sucks.
I know that Nickelback rightfully gets shat upon by all, but how is it that the walking, talking pair of bumper nuts known as Kid Rock isn’t right there with them? Who are the fans of this crap? I give you Exhibit A:
I think any band named “Monster Truck” is up there as well.
You will lose IQ if you listen to that “song”. You’ve been warned.
‘Driving Home For Christmas’ by Chris Rea. For some reason, it simply enrages me. A few of the more recent Christmas glurge songs (I can’t think of the titles) are maddening. But I’m a bitter old damaged curmudgeon who hates holidays.
I have very limited radio options at work through the company website. I generally listen to the classic rock station, and invariably when I start thinking “ugh, what is this trash?” it’s the Grateful Dead. So I’ll nominate their entire ouevre.
Wonderful Christmas time is also a really good call.
“Piano Man” by Billy Joel. Bad enough that it’s full of trite characters, but then one of those characters tells the piano man (Joel) that he’s too talented to be playing there. Ego much?
Also, any song that drunken partiers feel compelled to sing along with: “Don’t Stop Believin’,” “Sweet Caroline,” etc.
“DETROIT 'TILL I DIE, MOTHERFUCKER!!” 
I am a suburban Detroiter born and raised, as is Robert Ritchie (the son of an owner of several car dealerships who grew up in a mansion on a 6 acre estate). He is a national embarrassment to all of us Detroiters.
‘All Summer Long’ is also pretty bad, managing in one song to rip off both ‘Sweet Home Alabama’ and ‘Werewolves of London’. But yeah, that song is full-blown self-parody.
First song I thought of. It’s sheer over-exposure in my case - I can remember liking it once. Maybe when I was twelve. But I’ve long since blown through tolerance and mild dislike to active hate.
Yes, I was shocked to learn this years later as the Petra version was all I knew before the Kiss version they did for that movie. When we saw that movie, we thought they had made a new version of the “Petra song”.
In Navy boot camp in 1985, my company had been training for weeks and were about to go to the drill hall for our first drill evaluation.
As we stood at attention and prepared to head out our company commander walked in with a proper 1980’s style boom box, set it on the floor, and pressed “play”.
That was the first time I ever heard that song, and it struck me as perhaps the only appropriate place to use it. I enjoyed it and felt a surge of patriotism, though I’m not sure if it had its intended effect–we scored miserably. Perhaps we sucked less than we would have without the special preparatory music.
In later years I grew to dislike the song for the same reasons others dislike it.
Riders on the Storm - The Doors Trite middle school poetry lyrics, there are not enough drugs on this Earth for me to care about that song. In fact, the lyrics are really just a list of phrases and slant rhymes that make me stabby, I am convinced Jim wrote this song to piss me off.
There are worse songs, but not worse songs I hear frequently.
Excluding jingles (which have their own special circle in Hell - I’m looking at you, LibertyLiberty Liberty Liberty), the most annoying song in my opinion would be Achy Breaky Heart by Billy Ray Cyrus
And I will heartily second the nomination for God Bless the USA.
The Name Game; it’s like a tax form set to music.
Someone shared a theory that the song takes place in a gay bar, and the singer is the only one who doesn’t know it. Next time you hear it, see if that takes some of the sting out of it.
Okie From Muskogee. I still hate it, but the singing, musicianship and melody are top notch. Just didn’t like the lyrics. Pretty funny hearing them sung by the future and present dope smoker Willie Nelson. For all we knew about Merle Haggard, 'ol Merle was toking right there w/ Willie.
I much preferred that song by Charlie Daniels where he sings “If you don’t like the way I’m livin, just leave this long haired, country boy alone”. Now, of course, he’s apparently gone full on right wing.
Any song by Pink Floyd*.
If I am at the top of a 30 foot ladder, and a Pink Floyd song comes on the radio, I will climb down the ladder and change the station. Or turn it off. I do this for my own safety, else I will feel the urge to jump if I am subjected to the entirety of a Pink Floyd song.
*With the exception of their first album, which was brilliant.
Preceded by, “I get stoned in the morning and drunk in the afternoon”. The song has a good message, except for the drinking part 
It pains me to add this because it will become an earworm. Loving You by Minnie Ripperton. It just a bunch of screaching. I want to jab sharp objects in my ears when I hear it. To the OP, I now hate you for the next 72 hours till I get that song out of my head.
Well, he’s been gone completely since 2020. 