Hyatt Regency O'Hare Chicago — Event Spaces & Capacities

9300 W Bryn Mawr Ave, Rosemont, IL 60018

Hyatt Regency O'Hare Chicago gives Rosemont event planners 103 spaces to work with across 304,572 sq ft28,296 m² of function space. The largest room, Grand Ballroom, hosts up to 4,000 guests. Review the layouts and seating capacities below, then test your setup in 3D — free.

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Floor plans

Detailed floor plans for Hyatt Regency O'Hare Chicago are published on the venue’s official site.

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Room capacities & dimensions

Room capacities and dimensions for Hyatt Regency O'Hare Chicago
SpaceCeiling
BarajasPlan this room →672 sq ft62 m²8.5 ft2.6 m40603040241618
CapitalPlan this room →672 sq ft62 m²8.5 ft2.6 m40603040241618
Charles De GaullePlan this room →696 sq ft65 m²8.5 ft2.6 m40603040241618
Conference CenterPlan this room →832 sq ft77 m²15 ft4.6 m6010040125202530
D.F.WPlan this room →2,080 sq ft193 m²9.5 ft2.9 m12014090150463442
D.F.W. APlan this room →2,080 sq ft193 m²9.5 ft2.9 m60603675281624
D.F.W. BPlan this room →2,080 sq ft193 m²9.5 ft2.9 m60603675281624
DaVinci APlan this room →784 sq ft73 m²8.5 ft2.6 m40603050241618
DaVinci BPlan this room →784 sq ft73 m²8.5 ft2.6 m40603050241618
Davinci ABPlan this room →1,596 sq ft148 m²8.5 ft2.6 m801206410040—36
Directors APlan this room →——10129—8——
Directors ABCPlan this room →——60———15——
Directors BPlan this room →——302015—12——
Directors CPlan this room →——10126—8——
DullesPlan this room →621 sq ft58 m²9.6 ft2.9 m40503250241620
Entry Level FoyerPlan this room →——250——————
FlorencePlan this room →1,218 sq ft113 m²8.5 ft2.6 m8012072100462840
GatwickPlan this room →780 sq ft72 m²8.5 ft2.6 m40603040241618
Grand ABCPlan this room →—25 ft7.6 m348660540————
Grand ABCDPlan this room →—23 ft7 m5501,300750————
Grand ABCDEPlan this room →—23 ft7 m6481,340990————
Grand BallroomPlan this room →—23 ft7 m4,0002,6001,500————
Grand Ballroom APlan this room →2,835 sq ft263 m²23 ft7 m18018017030060—48
Grand Ballroom ABPlan this room →30,545 sq ft2,838 m²23 ft7 m675480325————
Grand Ballroom BPlan this room →2,745 sq ft255 m²23 ft7 m18018017030060—48
Grand Ballroom CPlan this room →2,745 sq ft255 m²23 ft7 m18018017030060—48
Grand Ballroom DPlan this room →30,545 sq ft2,838 m²23 ft7 m900350240————
Grand Ballroom EPlan this room →30,545 sq ft2,838 m²23 ft7 m900350240————
Grand Ballroom FPlan this room →2,835 sq ft263 m²23 ft7 m18018017030060—48
Grand Ballroom FGHPlan this room →—23 ft7 m1,200700480————
Grand Ballroom FoyerPlan this room →30,545 sq ft2,838 m²23 ft7 m230——————
Grand Ballroom GPlan this room →2,835 sq ft263 m²23 ft7 m18018017030060—48
Grand Ballroom HPlan this room →2,835 sq ft263 m²23 ft7 m18018017030060—48
Grand BoardroomPlan this room →—10 ft3 m10129—10——
Grand DEPlan this room →—23 ft7 m360680440————
Grand DEFGHPlan this room →—23 ft7 m6481,340990————
Grand EFGHPlan this room →—23 ft7 m5501,300750————
Grand Office APlan this room →——20———16——
Grand Office A&BPlan this room →——20———16——
Grand Office BPlan this room →——20———16——
Grand RegistrationPlan this room →——20———16——
HartsfieldPlan this room →1,508 sq ft140 m²9.6 ft2.9 m8012072130403236
Heathrow APlan this room →784 sq ft73 m²8.5 ft2.6 m40603050241618
Heathrow ABPlan this room →1,596 sq ft148 m²8.5 ft2.6 m801206410040—36
Heathrow BPlan this room →784 sq ft73 m²8.5 ft2.6 m40603050241618
International APlan this room →1,560 sq ft145 m²8.5 ft2.6 m7010072150462040
International ABCPlan this room →—8.5 ft2.6 m450250200————
International BPlan this room →1,680 sq ft156 m²8.5 ft2.6 m8013090200502044
International BallroomPlan this room →—8.5 ft2.6 m1,200600400————
International CPlan this room →1,400 sq ft130 m²8.5 ft2.6 m7011072150402034
International DPlan this room →1,092 sq ft101 m²8.5 ft2.6 m40605880281624
International DEFPlan this room →—8.5 ft2.6 m400250180————
International EPlan this room →1,568 sq ft146 m²8.5 ft2.6 m8013090175482042
International FPlan this room →1,456 sq ft135 m²8.5 ft2.6 m6011072175402034
J.F.KPlan this room →756 sq ft70 m²9.6 ft2.9 m40503260281824
John WaynePlan this room →832 sq ft77 m²9.5 ft2.9 m506036125301626
L.A.X.Plan this room →2,080 sq ft193 m²9.5 ft2.9 m12014090150463442
L.A.X. APlan this room →2,080 sq ft193 m²9.5 ft2.9 m60603675283624
L.A.X. BPlan this room →2,080 sq ft193 m²9.5 ft2.9 m60603675281624
La GuardiaPlan this room →756 sq ft70 m²9.6 ft2.9 m40503260281824
LambertPlan this room →832 sq ft77 m²9.5 ft2.9 m506036125301626
LibertyPlan this room →756 sq ft70 m²9.6 ft2.9 m40503260281824
LindberghPlan this room →832 sq ft77 m²9.5 ft2.9 m506036125301626
LoganPlan this room →621 sq ft58 m²9.6 ft2.9 m40503650241620
LondonPlan this room →1,680 sq ft156 m²8.5 ft2.6 m10014090160523048
MalpensaPlan this room →1,176 sq ft109 m²8.5 ft2.6 m6090388036—30
McCarranPlan this room →832 sq ft77 m²9.5 ft2.9 m506036125301626
MidwayPlan this room →1,508 sq ft140 m²9.6 ft2.9 m8010070130403236
MirabelPlan this room →672 sq ft62 m²8.5 ft2.6 m40603040241618
Narita APlan this room →784 sq ft73 m²8.5 ft2.6 m40603050241618
Narita BPlan this room →784 sq ft73 m²8.5 ft2.6 m40603050241618
Narita ABPlan this room →1,596 sq ft148 m²8.5 ft2.6 m801206410040—36
North CentralPlan this room →840 sq ft78 m²9 ft2.7 m40603060241618
O' Hare BallroomPlan this room →—9.6 ft2.9 m220220120————
O'H Private Dining RoomPlan this room →——50——————
O'Hare Ballroom APlan this room →570 sq ft53 m²9.6 ft2.9 m40604060241620
O'Hare Ballroom BPlan this room →930 sq ft86 m²9.6 ft2.9 m608050100342028
O'Hare Ballroom CPlan this room →750 sq ft70 m²9.6 ft2.9 m50703680301824
ParisPlan this room →1,288 sq ft120 m²8 ft2.4 m8012078130462840
Red BarPlan this room →——250——————
Ronald ReaganPlan this room →756 sq ft70 m²9.6 ft2.9 m40503260281624
Rosemont BallroomPlan this room →—18.4 ft5.6 m140160120250——54
Rosemont Ballroom APlan this room →2,280 sq ft212 m²18.5 ft5.6 m14016012025062—54
Rosemont Ballroom ABPlan this room →—18.5 ft5.6 m675460300————
Rosemont Ballroom BPlan this room →2,520 sq ft234 m²18.5 ft5.6 m16022015035070—60
Rosemont Ballroom CPlan this room →1,880 sq ft175 m²18.5 ft5.6 m15017010030058—48
Rosemont Ballroom CDPlan this room →—18.5 ft5.6 m575350230————
Rosemont Ballroom ComplexPlan this room →——2,500—500————
Rosemont Ballroom DPlan this room →1,640 sq ft152 m²18.5 ft5.6 m1201509020050—40
SeatacPlan this room →832 sq ft77 m²9.5 ft2.9 m506036125301626
Sky HarborPlan this room →832 sq ft77 m²9.5 ft2.9 m506036125301626
Tech CenterPlan this room →—8.5 ft2.6 m——40————
TegelPlan this room →667 sq ft62 m²8.5 ft2.6 m40603040241618
United APlan this room →1,664 sq ft155 m²9 ft2.7 m8010060120402430
United ABPlan this room →—9 ft2.7 m300180120————
United BPlan this room →1,664 sq ft155 m²9 ft2.7 m10013580180482436
VentanasPlan this room →——200——————
ViennaPlan this room →1,334 sq ft124 m²8.5 ft2.6 m8018072130462840
Additional spaces (dimensions only) (5)
Additional spaces with published dimensions only at Hyatt Regency O'Hare Chicago
SpaceSq ft / m²Ceiling
Grand Ballroom BCPlan this room →30,545 sq ft2,838 m²23 ft7 m
Grand Ballroom FGPlan this room →30,545 sq ft2,838 m²23 ft7 m
Grand Ballroom GHPlan this room →30,545 sq ft2,838 m²23 ft7 m
O'Hare Ballroom ABPlan this room →2,250 sq ft209 m²9.6 ft2.9 m
O'Hare Ballroom BCPlan this room →2,250 sq ft209 m²9.6 ft2.9 m

Figures from published venue data; blank cells mean the venue hasn’t published that number. Verify final counts with the venue.