12/29/2012 04:32 pm ET

'Real Housewives Of Orange County' Star Lynne Curtin Getting Divorced

2013 is gonna be A LOT different than 2012 for one "Real Housewife of Orange County"... former star Lynne Curtin officially pulled the plug on her marriage of 22 years, TMZ has learned.

Lynn -- who appeared in seasons 4 & 5 of the Bravo series -- recently filed docs in OC Superior Court to divorce her husband Frank Curtin, citing "irreconcilable differences."

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