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Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Jennifer Garner’s longtime partner is John Miller, a businessman and attorney whose reported work is in restaurant and payment technology. Entertainment coverage has linked the two since 2018 and reported a brief split and reconciliation; they keep their relationship largely private.
Who is Jennifer Garner’s boyfriend, John Miller?
Miller is a businessman and attorney associated in published profiles with Cali Group and PopID. Garner and Miller have not given a detailed public account of their relationship in the coverage cited here, so much of what is reported about their private life comes from unnamed sources.
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Harper’s Bazaar reported that Miller attended Stanford Law and previously worked in intellectual property at Arrowhead Pharmaceuticals. The magazine said he was the company’s vice president of intellectual property from 2004 to 2010.
What does John Miller do?
Published descriptions connect Miller to two companies with different focuses: Cali Group is described as a restaurant technology company, while PopID specializes in facial-recognition payment systems. Harper’s Bazaar described Miller as Cali Group’s chairman and PopID’s CEO; ELLE has described him as CEO of CaliBurger and its parent company, Cali Group. These reports use different leadership titles, so they should be understood as reported roles rather than confirmation of his current titles. Harper’s Bazaar; ELLE.
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Harper’s Bazaar and Vogue also report that Miller co-authored The Handbook of Nanotechnology: Business, Policy, and Intellectual Property Law. Their accounts conflict on its publication year: Harper’s Bazaar gives 2008, while Vogue gives 2004. The exact edition should be verified before citing a year or identifying a specific listing. Vogue.
How long have Jennifer Garner and John Miller been together?
Entertainment coverage dates the relationship to 2018. Later accounts reported that the pair appeared together at a Los Angeles performance of Dear Evan Hansen that November. Reports say they split in 2020 and rekindled the relationship in 2021.
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In 2025, coverage described them as together and relayed an unnamed source’s view that the relationship had reached a steady point. In August 2026, ELLE reported that they were photographed on a date in Santa Monica. Those accounts describe what sources and published reports say, not a detailed statement from Garner or Miller. Entertainment Tonight; ELLE.
Did Jennifer Garner and John Miller break up?
Yes, according to multiple entertainment reports: they had a brief split in 2020 and reconciled in 2021. Rumors of an engagement have also circulated, but a ring sighting does not establish an engagement, and neither Garner nor Miller is reported here to have confirmed one.
What is known about their families?
Garner shares three children with her former husband, Ben Affleck. Harper’s Bazaar reports that Miller was previously married to violinist Caroline Campbell and that they have two children. Keep in mind that broader claims about how the families relate to each other, including descriptions of Miller’s approach to Garner and Affleck’s co-parenting, have been attributed to unnamed sources rather than to the people involved. Harper’s Bazaar.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Why is so little known about their relationship?
Garner and Miller keep their romance out of the public eye. As a result, entertainment coverage often relies on unnamed sources for details about their feelings and day-to-day family life. The most firmly described public picture is therefore limited: reports date the relationship to 2018, record a split and reconciliation, and have continued to describe them as a couple.
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