A lot of them, actually. I pronounce them differently (I’m from New York City.)
Where do you live that you pronounce them the same?
They’re the same in the Midwest and Pacific NW.
My dialect is the huge pink swath marked #1 on this dialect map. We speak much the same as people in the western third of the continental US.
The northeastern US, including New York, makes vowel distinctions not found in some other dialects. Notably, we distinguish the vowels in Mary, marry, and merry, to the befuddlement of those who speak other dialects and can’t hear a difference. Listening to examples on line, it appears that a number of dialects in the UK also distinguish Aaron and Erin.
For those who (like me) didn’t know what the posters mentioning “Luka” were talking about:
It’s a song from ~2010 that strongly implies without saying the Luka is a young boy being abused at home. And yes, if you don’t pay attention to the words it’s real nice to listen to.
Thanks for posting LSLGuy, I had assumed that almost everybody knows the song. But one quibble, it’s actually from 1990.
1987, actually. And the actor who played the title character in the music video was later in The Sopranos.
Thanks for the correction, that’s what I get for nitpicking 
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ETA: one must concede that “Luka” is timeless pop music and could easily be from 1990 or 2010. It doesn’t sound dated even today.
No, you were right for nitpicking. I saw that mention of the song being from around 2010 and thinking, it’s way older than that.
Well, I’m a little embarrassed because I KNEW that it was from 1987, because I remember it being a hit back then, most of all because that was my graduation year at school. I somehow had a brain fart and typed 1990.
Just to wander further afield, Luka was of course a Suzanne Vega song and another big song from her was Tom’s Diner. That song was used in the creation of the MP3 standard; when the engineers were testing audio compression methods, they tried compressing that song, to see if it still sounded right. And also the diner of the title is the one shown in Seinfeld as the exterior of Monk’s Diner.
Continuing the adventure further into left field …
All I knew was the official video was dated 2010 on YouTube. So I added the ~ to account for the possibility the song came out a little earlier, like maybe the previous year. I figured for sure they’re release an official vid at about the same time as the song was released. At least for anything in the post-MTV era.
I guess we all learned that the date of a vid on YouTube, even an “official” one, doesn’t mean much. Oops on me.
Never having heard the song before I have to say that a) I agree it’s timeless, and b) had I not been watching the rather haunting video at the same time, I might never have gotten the child abuse vibe from the words even though the singing was well enunciated, easy to understand, and 'Merican is my first language.
In “civilized” parts of the USA, these two names are pronounced quite differently. Elsewhere, it falls victim to the same inability to distinguish Marry/Merry.
I was coming to mention the Laws!
Ha! Beat ya to it 
You event? I’m a dressage person but have been to Rolex when it was Rolex over 15 times. I remember when it was proper 3 day…
Yup. Been to Rolex every year for the last 20, and ride at Training/Prelim myself. Dressage too, of course, though I’ve not shown straight dressage in years.
Didn’t Taylor Swift and Taylor Lautner date for a while?
I used to work with a woman named Pat who was married to a man named Pat. That’s the extent of my personal experience with this particular phenomenon.