Sydna Konstin, heir to San Francisco’s famed John’s Grill restaurant dynasty, died suddenly at 41 while living in Greece.
Her family confirmed the death in an obituary published Thursday, stating that Konstin, daughter of co-owner John Konstin, passed away from heart failure on June 26 in Athens. She had relocated there after growing up in the San Francisco Bay Area, though she remained part of the third generation running the 118-year-old Union Square institution.
John’s Grill stands as one of San Francisco’s most politically and culturally wired dining rooms, a wood-paneled steakhouse established in 1908 and purchased in the 1960s by Greek immigrant Gus Konstin, Sydna’s grandfather. He transformed it into a noir landmark that drew power brokers, movie stars, and authors, including Dashiell Hammett, who made the restaurant a setting in his detective novel “The Maltese Falcon.”
The restaurant’s massive Election Day block parties became legendary citywide events, pulling in thousands of politicos, journalists, and locals with free wine and buffet spreads. Those gatherings became part of the Konstin family’s signature style of public hospitality.
Family members described Sydna as a natural hostess who sometimes worked behind the bar and drew crowds through sheer personal warmth. “She brought people together and made everyone feel better just by being there,” her brother, John Jr., said in her obituary. A family spokesperson called her the “bubbles in the champagne,” noting the family’s pride in her shared inheritance of the business.
Her father, John Konstin, had publicly celebrated his daughter months before her death. “From the day I first held her, she filled our lives with love, laughter, compassion, and a light that could never be measured,” he wrote in a July Facebook post. He continued, “She had a smile that could quiet your worries, a heart that always found room for someone else, and a way of making every person she met feel like they mattered.”
At the time of her death, Konstin was working in real estate rather than day-to-day restaurant operations, though her family ties to John’s Grill remained central to her identity. The restaurant continues under the ownership of her father and brother, carrying forward the legacy that began with her grandfather’s purchase six decades ago.
The Konstin family has not announced memorial plans.
