I know that in Canada it’s Zed
In the US it’s said as Zee
How do you say it and where are you from?
US - Zee
Sometimes we even pronouce ‘X’ with a ‘Ze’ sound as well. Probably not relevent though.
I rhyme
A B C D E F G
H I J K LMNOP
Q R S, T U V
W X, Y and Zee
Now I know my ABCs
Next time wont you sing with me.
It’s pronounced throat warbler mangrove.
You beat me to it! Confound you to the deepest, darkest level of heck!
(it’s like hell, only with better food and a pool)
I saw the link: How do you pronounce Z
and I was like, “What do you mean – “seven.” How else can you pronounce it?”
I am a USian & therefore pronounce it “zee”.
I am from India. I pronounce it as “Zed” just as every other Indian.
Zee if you’re an O’Murrigan, Zed if you’re speaking English.
I’m outta here!!!
New Zealand - it’s pronounced “zed”. Everyone knows that! 
I taught math in Swaziland (Peace Corps), and I would say, “Here is Triangle X Y Zee.” And the kids, being in a British Commenwealth nation, would say with delight, “Zeeeeeeee, Madam, what is this Zeeeeeeee?”
/z/
Oz = Zed.
I’m from Enzed. It’s also pronounced zed in Pakistan.
UK = zed
I thought it was a thread just for me. 
I am reminded of Wayne’s World - could have been SNL - when Wayne asked Garth “Do they pronounce zztop (saying zee-zee-top) as zed-zed-top in the Uk?”
It’s funny, I learned “british” English at school, but since I am mostly exposed to US media and shows, I’d probably say “zee”. Overall I’d say my pronunciation of words is a mixture between british and american.
Just for kicks, if there was a cola named just ‘Z’, would it be “Zed Pop”, or “Zee Soda”? Discuss.
Raymond Luxury Yacht
Z = Zulu.