It can be pronounced any way you can spell it. Another thing people should keep in mind is depending upon origin and what dialect of French used it will sound different.
I have a friend from Belgium that uses the nickname Jacque, rather than the more common Jackie. I think that in Belgium and other Flemish/Dutch-speaking countries, Jacque is the common abbreviation of Jacqueline. She also pronounces her name "ZHACK-leen."
My mother's name is Jacqueline (Jackie for short) and I have honestly never heard it pronounced any way besides the way hers is pronounced (JACK-kwuh-lin, where the ck and kw sounds merge to be almost the same sound) and the French two-syllable way. No offense to anyone who likes the JACK-lin pronunciation, but to me it sounds like a child's abbreviated version of the name when they don't quite have the verbal skills to pronounce the full thing. The two pronunciations I'm used to are both very lovely and, to me, it seems a shame to alter either of them beyond giving nicknames.
― Anonymous User 4/18/2012
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Jacqueline is also pronounced: JAK-qwa-lin.This is the way my name is pronounced and a few other famous ladies whose name is spelled identically: Jacqueline Bissett, Jacqueline Kennedy.
― Anonymous User 2/19/2012
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Here in Australia we tend to pronounce the name JAH-QUEH-LYN. I prefer this way of pronouncing it way above the "Jaclyn" way of saying it!
This is my name. I pronounce it Jah-keh-lyn, but sometimes I get lazy and pronounce it Jack-lyn. A lot of people call me Jackie, although I prefer my full name. Even those I just meet start calling me Jackie, which I find rude. Anyway, I think this is a lovely name. P.S. My mother is Cuban and sometimes calls me Jacoba, which someone else mentioned. Spanish speakers know this is a French name and it's read Jah-keh-leen is Spanish. Once again, as others have mentioned.
― Anonymous User 6/26/2008
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It's a gorgeous name, but in French, it is NOT pronounced zhah-kuh-LEEN. It's zhak-LEEN.
Jay-Quell-En!