Events OverviewYour Golden Gateway to Bold Events
Events Overview Your Golden Gateway to Bold EventsPlan a memorable event amid San Francisco’s eclectic mix of architecture, culture, and diversity at Hilton San Francisco Union Square. From our coveted spot just off Union Square and close to Moscone Convention Center, guests have easy access to the best of the city.
Host an Event
Submit a proposal to find out what we can offer.
Stay Together
Traveling with a group? Reserve 10 or more rooms instantly.
Book Meeting Space
Find and book meeting space for up to 35 people.
Create An Attendee Website
For room blocks big and small, at all Hilton hotels and brands.
The Largest Hotel in California
With 134,000 sq. ft. of meeting space, including a 30,000 sq. ft. Grand Ballroom and our new Continental Ballroom, our hotel is ideal for meetings for up to 2,000 people. Our Executive Conference Center boasts four separate boardrooms and our Cityscape Lounge has 360 degree views of the San Francisco skyline. We have a total of 73 function rooms, and all rooms have wireless high speed internet capability.
Attentive Service
Our 24 hour Event Services Team will go above and beyond to create an experience focused on your specific goals, while guiding you through the planning and execution of your event. Our team can assist with audiovisual setup, catering, venue selection, and more.
- 74 Meeting Rooms
- 1,921 Guest Rooms
- Total Event Space 205,843 square feet
- Largest Room Setup 29,637 square feet
Our Specialties
Event Services
Rely on our tenured, in-house team to bring flawless execution to your vision. With decades of collective experience, we anticipate your needs and manage every detail, ensuring a seamless event from start to finish.
Culinary
Imagine a menu, and our acclaimed in-house chefs will bring it to life. From lavish galas to intimate gatherings, we craft bespoke culinary experiences using the freshest local ingredients to perfectly match your event’s tone and taste.
Meet with Purpose
Host events that make a difference. Our “Meet with Purpose” program helps you reduce environmental impact and support our local community, turning your meeting into a force for good without compromising on quality or experience.
Event Branding
Transform our hotel into your brand’s canvas. We offer complete customization, from dramatic escalator wraps down to the key cards, ensuring every touchpoint reinforces your identity and creates a fully immersive experience for your guests.
Walk to Moscone Convention Center
Stay steps from Moscone. Work smarter, not harder
Capacity Chart
| Event Room Name | Banquet | Conference | Square | Reception | School Room | Theatre | U-Shape |
|---|---|---|---|---|---|---|---|
| Grand Ballroom29,637 Square Feet | 2700 | Not available | Not available | 3400 | 1200 | Not available | Not available |
| Grand Ballroom B19,980 Square Feet | 1760 | Not available | Not available | 2290 | 800 | 2250 | Not available |
| Continental Ballroom19,152 Square Feet | 1620 | Not available | Not available | 2100 | 1200 | 2200 | Not available |
| Golden Gate Rooms14,592 Square Feet | 700 | Not available | Not available | 929 | Not available | Not available | Not available |
| Yosemite Room11,685 Square Feet | 742 | Not available | 1350 | Not available | Not available | Not available | Not available |
| Grand Ballroom A9,657 Square Feet | 870 | Not available | Not available | 1110 | 400 | 900 | Not available |
| East Lounge6,760 Square Feet | 160 | Not available | Not available | 900 | Not available | Not available | Not available |
| South Lounge6,760 Square Feet | 160 | Not available | Not available | 900 | Not available | Not available | Not available |
| Imperial Ballroom6,642 Square Feet | 500 | Not available | 80 | 780 | 300 | 750 | Not available |
| Plaza Room6,237 Square Feet | 480 | Not available | Not available | 700 | 348 | Not available | Not available |
| Franciscan Room5,184 Square Feet | 500 | Not available | Not available | 785 | Not available | Not available | Not available |
| Continental Ballroom 54,200 Square Feet | 400 | Not available | 60 | 473 | 180 | 475 | 56 |
| Continental Ballroom 44,116 Square Feet | 400 | Not available | 60 | 473 | Not available | 475 | 56 |
| Continental Ballroom 64,116 Square Feet | 400 | Not available | 60 | 473 | 180 | 475 | 56 |
| Imperial A3,280 Square Feet | 230 | 44 | 48 | 380 | 120 | 360 | 42 |
| Imperial B3,280 Square Feet | 230 | 44 | 48 | 380 | 120 | 360 | 42 |
| Plaza A3,240 Square Feet | 230 | Not available | 48 | 370 | 201 | 380 | 42 |
| Plaza B2,997 Square Feet | 220 | Not available | 48 | 350 | 201 | Not available | 42 |
| West Lounge2,750 Square Feet | 60 | Not available | Not available | 150 | Not available | Not available | Not available |
| California Room1,734 Square Feet | Not available | Not available | Not available | Not available | Not available | Not available | Not available |
| North Lounge1,625 Square Feet | Not available | Not available | Not available | 300 | Not available | Not available | 90 |
| Yosemite B1,536 Square Feet | 130 | 40 | 45 | 180 | 60 | 160 | 39 |
| Grand Ballroom Foyer1,311 Square Feet | Not available | Not available | Not available | Not available | Not available | Not available | Not available |
| Yosemite A1,127 Square Feet | 90 | 38 | 42 | 130 | 48 | 130 | 36 |
| Yosemite C1,104 Square Feet | 90 | 38 | 42 | 130 | 48 | 130 | 36 |
| Continental Ballroom 21,080 Square Feet | 90 | 40 | Not available | 124 | 72 | 120 | Not available |
| Continental Ballroom 81,080 Square Feet | 90 | 40 | 40 | 124 | 48 | 120 | 33 |
| Franciscan B1,080 Square Feet | 80 | 40 | 40 | 130 | 34 | 100 | 36 |
| Franciscan C1,080 Square Feet | 80 | 40 | 40 | 130 | 34 | 100 | 36 |
| Franciscan D1,080 Square Feet | 80 | 40 | 40 | 130 | 34 | 100 | 36 |
| Green Room1,056 Square Feet | 25 | 20 | Not available | Not available | Not available | Not available | Not available |
| Golden Gate 21,032 Square Feet | 70 | 36 | 42 | 120 | 63 | 110 | 32 |
| Golden Gate 31,032 Square Feet | 70 | 36 | 42 | 120 | 78 | 110 | 32 |
| Golden Gate 41,032 Square Feet | 70 | 36 | 42 | 120 | 63 | 110 | 32 |
| Golden Gate 71,032 Square Feet | 70 | 36 | 42 | 120 | 63 | 110 | 32 |
| Golden Gate 81,032 Square Feet | 70 | 36 | 42 | 120 | 63 | 110 | 32 |
| Executive Boardroom1,024 Square Feet | 25 | 20 | Not available | Not available | Not available | Not available | Not available |
| Golden Gate 61,008 Square Feet | 70 | 36 | 42 | 120 | 63 | 110 | 32 |
| Franciscan A990 Square Feet | 80 | 40 | 40 | 130 | Not available | 100 | 36 |
| Golden Gate 5984 Square Feet | 70 | 36 | 42 | 120 | 63 | 110 | 32 |
| Union Square 15 and 16930 Square Feet | 80 | 52 | Not available | 110 | 40 | 110 | 30 |
| Continental Ballroom 1920 Square Feet | 80 | 40 | 36 | 106 | 60 | 100 | 30 |
| Continental Ballroom 3920 Square Feet | 80 | 40 | 36 | 106 | 40 | 100 | 30 |
| Continental Ballroom 7920 Square Feet | 80 | 40 | 36 | 106 | 40 | 100 | 30 |
| Continental Ballroom 9920 Square Feet | 80 | 40 | 30 | 106 | 40 | 100 | 30 |
| Golden Gate 1759 Square Feet | 50 | 30 | 32 | 90 | 45 | 70 | 28 |
| Union Square 1 and 2735 Square Feet | 60 | 40 | Not available | 85 | 32 | 90 | 30 |
| Union Square 3 and 4735 Square Feet | 60 | 40 | Not available | 85 | 32 | 90 | 30 |
| Union Square 5 and 6720 Square Feet | 60 | 40 | Not available | 85 | 32 | 90 | 30 |
| Union Square 14600 Square Feet | 50 | 34 | Not available | 70 | 26 | 60 | 27 |
| Union Square 13540 Square Feet | 50 | 34 | Not available | 70 | 26 | 60 | 27 |
| Union Square 21540 Square Feet | 50 | 34 | Not available | 60 | 26 | 70 | 27 |
| Union Square 15465 Square Feet | 40 | 24 | Not available | 55 | 20 | 50 | 14 |
| Union Square 16465 Square Feet | 40 | 24 | Not available | 55 | 20 | 50 | 14 |
| Union Square 20450 Square Feet | 40 | 24 | Not available | 55 | 20 | 50 | 14 |
| Seacliff Room440 Square Feet | Not available | 16 | Not available | Not available | Not available | Not available | Not available |
| Union Square 19435 Square Feet | 40 | 24 | Not available | 55 | 20 | 50 | 14 |
| Union Square 18405 Square Feet | 30 | 22 | Not available | 50 | 14 | 50 | 14 |
| Union Square 2405 Square Feet | 30 | 22 | Not available | 40 | 14 | 50 | 14 |
| Union Square 4405 Square Feet | 30 | 22 | Not available | 45 | 14 | 50 | 14 |
| Presidio Room391 Square Feet | Not available | 12 | Not available | Not available | Not available | Not available | Not available |
| Union Square 6390 Square Feet | 30 | 22 | Not available | 45 | 14 | 50 | 14 |
| Union Square 10360 Square Feet | 30 | 22 | Not available | 40 | 16 | 40 | 15 |
| Union Square 11360 Square Feet | 30 | 22 | Not available | 40 | 16 | 40 | 15 |
| Union Square 9360 Square Feet | 30 | 22 | Not available | 40 | 16 | 40 | 15 |
| Union Square 12345 Square Feet | 30 | 22 | Not available | 40 | 16 | 40 | 15 |
| Union Square 8345 Square Feet | 30 | 22 | Not available | 40 | 16 | 40 | 15 |
| Marina Room340 Square Feet | Not available | 10 | Not available | Not available | Not available | Not available | Not available |
| Union Square 1330 Square Feet | 30 | 16 | Not available | 40 | 14 | 40 | 14 |
| Union Square 3330 Square Feet | 30 | 16 | Not available | 40 | 14 | 40 | 14 |
| Union Square 5330 Square Feet | 30 | 16 | Not available | 40 | 14 | 40 | 14 |
| Sunset Room315 Square Feet | Not available | 12 | Not available | Not available | Not available | Not available | Not available |
| Union Square 17315 Square Feet | 30 | 16 | Not available | 40 | 14 | 40 | 14 |
| Union Square 7299 Square Feet | 20 | 8 | Not available | 40 | 8 | 20 | 8 |