A character in a movie I saw recently was named [name_f]Thalia[/name_f] but I don’t recall how it was pronounced in the movie. I mentioned the name to my brother last night (pronouncing it [name_m]Thay[/name_m]-lia) and he corrected me and pronounced it as [name_m]Tah[/name_m]-lia or Tall-ia and that the H is not pronounced. My boyfriend insists that it’s Thal-ia (Thal rhyming with [name_u]Val[/name_u]). [name_m]How[/name_m] have you heard it pronounced? Googling it gave me mixed results.
Ta-lia or Ta-lia
I am Greek, I speak Greek, and in Greek, [name_f]Thalia[/name_f] is properly pronounced [name_m]THAY[/name_m]-lee-ah (how you said it originally).
[name_m]TAH[/name_m]-lee-ah. Unless you’re Greek, I guess 
Well, someone’s a PJO fan.
In the US and UK, it’s generally pronounced [name_m]TAH[/name_m]-lee-uh. Though in it’s original Greek, according to dantea, [name_m]THAY[/name_m]-lee-uh is correct.
I would generally go for THAH-lee-ah but I think I’m probably wrong 
It’s a pity as I love the th- sound at the start!
[name_m]Thay[/name_m]-lee-a is how I say it, and imo the prettiest sound. I’ve always been confused why [name_f]Thalia[/name_f] gets the silent H treatment when so many other Th names make the Th sound. [name_m]Theodore[/name_m], [name_m]Thaddaeus[/name_m], [name_f]Thisbe[/name_f], [name_f]Thora[/name_f], etc. I really like Th names. Is the H in Th silent in other English speaking countries?
I have no Greek qualifications but I’d pronounce [name_f]Thalia[/name_f] either [name_m]TAHL[/name_m]-ya, THAL-ya, or Tha-[name_u]LEE[/name_u]-ya
depends upon my mood I guess?
I pronounce it [name_m]TAHL[/name_m]-yah.
TH in Greek makes the TH sound. Like in [name_f]Thisbe[/name_f], [name_f]Thalassa[/name_f], Thanatos, Thrasos, etc.
To break down why it’s thay-lee-a and not tahl-yah:
It’s written like this – theta alpha lambda epsilon iota alpha. Those sound like this – th a l ee ah . The alpha like most vowels, is pronounced differently depending on what’s around it. So the name is correctly said thay-lee-ah and it’s also correct to say thah-lee-ah (though all my Greek people say it thay). Either way, it has to have the TH sound to be correct because of the theta.
I know the rest of you didn’t ask, but [name_f]Fey[/name_f] asked about the TH so I felt the need to go into details. 
I know a [name_f]Thalia[/name_f], and she pronounces it thay-lee-uh but when I think of the PJATO character for some reason my default pronunciation is Tha-lee-uh with the a sound being short like in cat.