She may have ruined Christmas for her second-grade students, but at least she’s sorry.

The upstate elementary school teacher vilified for telling a class full of 7- and 8-year-olds that Santa doesn’t exist has finally apologized for the epic blunder.

Leatrice Ann Eng, 58, called each of the students’ parents with a yuletide mea culpa for her gaffe.

“It’s sad; she was wrong,” said Irene Hoffman, a mother of three students at George W. Miller Elementary School in Nanuet.

“This whole thing is being blown out of proportion. I think we should focus on our children’s education, and just move on.”

Eng, 58, was in the middle of a lesson about the North Pole Tuesday when one of her students pointed out that that was where Santa Claus lives.

The educator snapped that not only was there no Santa, but their parents are the ones who leave presents under the tree.