A California man who became one of New York’s most wanted criminals after a bank-robbery spree last Christmas season pleaded guilty yesterday to a slew of charges.

Marat Mikhaylich, 35, who became known as the “Holiday Bandit,” admitted in Brooklyn federal court to committing the bank jobs.

A native of Ukraine, Mikhaylich faces more than 15 years in prison when he is sentenced.

Mikhaylich traveled from the West Coast last winter and began a series of robberies at financial institutions in the Big Apple and New Jersey to feed his mounting heroin habit, law-enforcement sources said.