Break-Up Rumors, Is Maggie Siff Single Again?

  • By Zach Selby
  • Washington
  • Last updated on

Is the 51-year-old actress officially back on the market?
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Are celebrities more likely to divorce or break up? Earlier this week news reports surfaced that Maggie Siff, 51, and her partner had split up. Is the actress best known for her roles in Mad Men, Sons of Anarchy or Billions really single again?

UPDATE 14/12/2025 : This story seems to be false. (read more)

Siff spotted alone

A fan spotted Maggie Siff walking alone, probably coming back from picking up her mail at the end of her several mile long driveway, on the afternoon of December 12, 2025. Was she all alone? “Definitely yes,” says the fan, adding that “She was wearing a large sweater and looked really cute!”

Is Maggie back on the market?

A rep for Maggie Siff was not immediately available for comment.

Truth or rumor, when news that the actress was splitting hit the internet Saturday (December 13), Twitter immediately exploded with pithy commentary. It seems everyone had an opinion on the matter:

“Has anyone Maggie’s phone number?”
— Mike Whedon (@mikywhedon) December 13, 2025
“Hate to see Siff split up, but I thought the pairing was a little weird.”
— AaronJ (@aaronjj) December 13, 2025

Based on the facts (Siff spotted alone with a cute sweater), is there trouble in paradise or is it much ado about nothing?

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