I'm a business owner
  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.
Website
Phone

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.
Website
Phone

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