From Sebastian Stan to Bradley Cooper, All the People Dianna Agron Has Dated

Agron dated actor Dave Franco in 2008, according to E! News. The couple's relationship lasted about a year, and the two called it quits sometime in 2009.

Agron met Alex Pettyfer on the set of 2011's "I Am Number Four," and they began dating in the summer of 2010, per People. The two kept their relationship under wraps for the most part but had a messy breakup that swept the tabloids in February 2011.

A source told E! News at the time that Pettyfer was "a little controlling" and "seemed really paranoid that she would cheat," which led to their split. Meanwhile, another source told E! News, "They were very in love, they are young, sometimes things just don't work out."

Months after her breakup with Pettyfer, Agron began dating Sebastian Stan in June 2011, per Marie Claire. The couple kept their romance under the radar but split sometime in December 2011, though Agron referred to Stan as her boyfriend in an interview with Jimmy Kimmel on "Jimmy Kimmel Live!" in April 2012, per Us Weekly.

When Agron was spotted holding hands with "Paranormal Activity" filmmaker Henry Joost at a Jack White concert in May 2012, outlets immediately speculated that the two were dating. A source told JustJared at the time that the couple "have been getting to know each other for the past few weeks. They're taking it slowly."

Outside of the public appearance at the concert, the pair were not spotted anywhere else, and they appear to have broken up shortly afterward, as Agron began dating Christian Cooke in December of that year.

After ending her relationship with Joost, Agron met fellow actor Cooke, and the pair started dating in December 2012, per E! News. The couple were private about their relationship and seemed to break up sometime around April 2013, which is when they were last pictured in public together.

In August 2013, the "Glee" actor allegedly started dating Australian restaurateur Nick Mathers, per E! News. A source told Us Weekly in September of that year, "It's pretty new, but it's serious...Nick [Mathers] is amazing, from Australia. [He's an] incredible designer [and has] great restaurants like Ruby's Burgers in Australia and NYC, Goldie's and Eveleigh here [in NYC]." Like her other relationships, Agron kept her romance with Mathers private. The two split in January 2014 for unknown reasons.

Agron started dating Australian actor Thomas Cocquerel in March 2014, per Us Weekly. The pair were seen getting cosy at the Coachella Music Festival in April of that year but kept their romance under wraps for the remainder of 2014 until their breakup in December.

It's unclear how long they dated, but Agron and Luke Bracey were first romantically in February 2015 when they were photographed holding hands in Los Angeles. Not much else is known about their relationship.

Agron began dating "The Menu" actor Nicholas Hoult in April 2015, as reported by Entertainment Tonight. The couple's relationship blossomed from a long friendship, with a source telling The Sun (via The Mirror) at the time, "They've been friends for a long time. It's early days but things between them are ticking along nicely."

Agron and Hoult were supposedly spotted in a few London bars kissing, which led to the initial reports of their romance. It is unknown when they two split, but it appears to have been a brief fling, according to multiple outlets.

It is unknown exactly when Agron and Hoult broke up, but by July 2015, the actor started dating Mumford & Sons musician Winston Marshall, according to Us Weekly. Like her other relationships, Agron maintained privacy with Marshall, and the two secretly got engaged in December 2015, just months after they began their relationship.

By October 2016, the couple privately tied the knot in Morocco, as reported by Us Weekly. Agron and Marshall's nuptials were short-lived, however, and by August 2020, the pair split for good. Us Weekly reported at the time that they had been living apart for nearly a year before the official split.

Agron briefly dated Bradley Cooper sometime in the early months of 2022. According to Us Weekly, the pair's relationship was "not serious" and they were just casually dating before Cooper started seeing Huma Abedin, political staffer and ex-wife of disgraced politician Anthony Weiner.

Before Agron's fling with Bradley Cooper, she started dating Belgian artist Harold Ancart in late 2021, according to Cultured Magazine. The two seemingly split sometime in 2022 when Agron and Cooper were linked but were back together by November 2022, per E! News. Not much is known about the couple's relationship, as Agron keeps her love life out of the spotlight, but the two appear to be together as of April 2023.