Generally, former spouses are not entitled to benefits under a qualified plan, unless provisions were made for them to receive benefits under a qualified domestic relations order. To be sure, you'll want to check with the plan administrator to determine whether you are entitled to receive benefits under the plan. If you used an attorney for your divorce, he or she may also be able to let you know whether you are entitled to any benefits.
For more insight, see Getting A Divorce? Understand The Rules Of Dividing Plan Assets.
This question was answered by Denise Appleby.