O’Brien Estate is a family-owned, appointment-only winery in Napa Valley specializing in intimate, romantic wine tasting experiences for couples and small groups. Located in the Oak Knoll District, our estate offers private seated tastings overlooking the vineyards, creating a quiet alternative to crowded tasting rooms. Guests visit O’Brien Estate to celebrate anniversaries, engagements, proposals, birthdays, and meaningful milestones while enjoying limited-production, estate-grown wines. Recognized by U.S. News & World Report as the #1 Destination in Napa Valley (2023), our winery blends rustic luxury with genuine hospitality.