Westborough School Superintendent Marianne O'Connor announced her retirement during Wednesday night's school committee meeting, effective after this school year.
"It comes with mixed emotions, obviously, but a decision I really need to make," O'Connor said, noting she wants to "spend more time with my granchildren, and my soon-to-be 94-year-old mother."
O'Connor said she has spent nearly 35 years in public and private education, including 22 in Westborough.
"I can't say that I have not had an amazing career here," which began as a substitute teacher, she said.
"I am so proud of this district, and so proud to have had the opportunity to work here."
O'Connor said she will continue living in town.
"This is my community. I'm embedded in it in so many ways," she said.
O'Connor received a standing ovation
School committee member Karen Henderson said that "I think it's a great testament to the kind of leader you've been that your leadership team is here."
"We appreciate everything you've done for us, You've been an excellent superintendent, and employee in this district. And I think that although it will be difficult to replace you, you are leaving the schools in top-notch condition for your successor," Henderson said.
Chairman Ilyse Levine-Kanji said O'Connor, in making decisions, has always focused on "what's best for our students."