1. San Francisco
  2. Party Venues

Hilton San Francisco Union Square

333 O'Farrell Street, San Francisco, CA
20,031 Capacity
From boardroom meetings to massive international conferences, we cater to events of all sizes with a variety of modern and customizable meeting spaces. Our innovative team of event planners, caterers and award-winning banquet chefs will work closely with you to ensure your event is the talk of the town.
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Event Spaces

Continental Ballroom
Continental Ballroom
Ballroom
2,200 Capacity
Continental Ballroom 4
Continental Ballroom 4
Ballroom Section
475 Capacity
Continental Ballroom 5
Continental Ballroom 5
Ballroom Section
490 Capacity
Continental Ballroom 6
Continental Ballroom 6
Ballroom Section
475 Capacity
Continental Parlor 1
Continental Parlor 1
Ballroom Section
106 Capacity
Continental Parlor 2
Continental Parlor 2
Ballroom Section
124 Capacity
Continental Parlor 3
Continental Parlor 3
Ballroom Section
106 Capacity
Continental Parlor 7
Continental Parlor 7
Ballroom Section
106 Capacity
Continental Parlor 8
Continental Parlor 8
Ballroom Section
124 Capacity
Continental Parlor 9
Continental Parlor 9
Ballroom Section
106 Capacity
Executive Board Room
Executive Board Room
General Event Space
18 Capacity
Franciscan Room
Franciscan Room
General Event Space
644 Capacity
Franciscan Room A
Franciscan Room A
General Event Space
114 Capacity
Franciscan Room B
Franciscan Room B
General Event Space
129 Capacity
Franciscan Room C
Franciscan Room C
General Event Space
129 Capacity
Franciscan Room D
Franciscan Room D
General Event Space
129 Capacity
Grand Ballroom
Grand Ballroom
Ballroom
3,407 Capacity
Grand Ballroom A
Grand Ballroom A
Ballroom Section
1,110 Capacity
Grand Ballroom B
Grand Ballroom B
Ballroom Section
2,297 Capacity
Grand Ballroom Foyer
Grand Ballroom Foyer
Ballroom
Green Room
Green Room
General Event Space
25 Capacity
Imperial Ballroom
Imperial Ballroom
Ballroom
773 Capacity
Imperial Ballroom A
Imperial Ballroom A
Ballroom Section
386 Capacity
Imperial Ballroom B
Imperial Ballroom B
Ballroom Section
386 Capacity
Lombard Room
Lombard Room
General Event Space
80 Capacity
Marina Room
Marina Room
General Event Space
10 Capacity
Mason Room
Mason Room
General Event Space
90 Capacity
Mason Room A
Mason Room A
General Event Space
43 Capacity
Mason Room B
Mason Room B
General Event Space
45 Capacity
Plaza Room
Plaza Room
General Event Space
717 Capacity
Plaza Room A
Plaza Room A
General Event Space
372 Capacity
Plaza Room B
Plaza Room B
General Event Space
344 Capacity
Powell Room
Powell Room
General Event Space
90 Capacity
Powell Room A
Powell Room A
General Event Space
43 Capacity
Powell Room B
Powell Room B
General Event Space
45 Capacity
Presidio Room
Presidio Room
Fixed Board Room
10 Capacity
Seacliff Room
Seacliff Room
Fixed Board Room
14 Capacity
Sunset Room
Sunset Room
Fixed Board Room
12 Capacity
Sutter Room
Sutter Room
General Event Space
90 Capacity
Sutter Room A
Sutter Room A
General Event Space
43 Capacity
Sutter Room B
Sutter Room B
General Event Space
45 Capacity
Taylor Room
Taylor Room
General Event Space
90 Capacity
Taylor Room A
Taylor Room A
General Event Space
43 Capacity
Taylor Room B
Taylor Room B
General Event Space
45 Capacity
Union Square 1
Union Square 1
General Event Space
40 Capacity
Union Square 1 & 2
Union Square 1 & 2
General Event Space
90 Capacity
Union Square 10
Union Square 10
General Event Space
44 Capacity
Union Square 11
Union Square 11
General Event Space
44 Capacity
Union Square 12
Union Square 12
General Event Space
42 Capacity
Union Square 13
Union Square 13
General Event Space
70 Capacity
Union Square 14
Union Square 14
General Event Space
71 Capacity
Union Square 15
Union Square 15
General Event Space
55 Capacity
Union Square 15 & 16
Union Square 15 & 16
General Event Space
110 Capacity
Union Square 16
Union Square 16
General Event Space
55 Capacity
Union Square 17
Union Square 17
General Event Space
40 Capacity
Union Square 17 & 18
Union Square 17 & 18
General Event Space
90 Capacity
Union Square 18
Union Square 18
General Event Space
50 Capacity
Union Square 19
Union Square 19
General Event Space
53 Capacity
Union Square 19 & 20
Union Square 19 & 20
General Event Space
107 Capacity
Union Square 2
Union Square 2
General Event Space
50 Capacity
Union Square 20
Union Square 20
General Event Space
53 Capacity
Union Square 21
Union Square 21
General Event Space
87 Capacity
Union Square 22
Union Square 22
General Event Space
110 Capacity
Union Square 23
Union Square 23
General Event Space
53 Capacity
Union Square 23 & 24
Union Square 23 & 24
General Event Space
107 Capacity
Union Square 24
Union Square 24
General Event Space
53 Capacity
Union Square 25
Union Square 25
General Event Space
80 Capacity
Union Square 3
Union Square 3
General Event Space
40 Capacity
Union Square 3 & 4
Union Square 3 & 4
General Event Space
90 Capacity
Union Square 4
Union Square 4
General Event Space
50 Capacity
Union Square 5
Union Square 5
General Event Space
41 Capacity
Union Square 5 & 6
Union Square 5 & 6
General Event Space
90 Capacity
Union Square 6
Union Square 6
General Event Space
50 Capacity
Union Square 7
Union Square 7
General Event Space
37 Capacity
Union Square 8
Union Square 8
General Event Space
42 Capacity
Union Square 9
Union Square 9
General Event Space
44 Capacity
Van Ness Room
Van Ness Room
General Event Space
80 Capacity
Yosemite Room
Yosemite Room
General Event Space
1,343 Capacity
Yosemite Room A
Yosemite Room A
General Event Space
130 Capacity
Yosemite Room B
Yosemite Room B
General Event Space
180 Capacity
Yosemite Room C
Yosemite Room C
General Event Space
130 Capacity

Additional Info

Neighborhood
  1. Downtown
Venue Types
  1. Hotel, Resort, Lodge
Amenities
  • On-Site Catering Service
  • Outdoor Pool
  • Wireless Internet/Wi-Fi
Features
  • Max Number of People for an Event: 20031
  • Total Meeting Room Space (Square Feet): 134,500