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Hilton St. Louis Frontenac

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Meetings and events

We have 17 meeting rooms and a business center as well as our Ambassadeur Ballroom which can accommodate up to 1,000 guests. Our dedicated event staff will assist with every detail to ensure your event is a success.

  • Total event space
    29,373sq. ft.
  • Largest room setup
    10,032sq. ft.
  • Meeting rooms
  • Guest rooms


Our wedding venues include pillarless ballrooms with chandeliers and elegant suites with floor-to-ceiling windows. We can help tailor everything including your decor, catering, and cocktail list.

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Capacity chart

Chart displays number of guests per room layout.

Event Room NameBanquetConferenceSquareReceptionSchool RoomTheatreU-Shape
Ambassadeur BallroomSquare Feet: 10,032700--10006001000-
Clayton BallroomSquare Feet: 6,688350--600250600-
Ambassdeur II-IV-VISquare Feet: 5,016250--300200--
Ambassadeur I-III-VSquare Feet: 4,484250--300200450-
Clayton ACSquare Feet: 3,572175-7030012530060
Clayton BDSquare Feet: 3,344175707030012530060
Ambassadeur II-IVSquare Feet: 3,168200--200135250-
Ambassadeur I-IIISquare Feet: 2,832200--200135250-
Ambassadeur VISquare Feet: 1,8489040-2007517540
Clayton CSquare Feet: 1,78619050501506015040
FrontenacSquare Feet: 1,7169040-10070190-
Clayton BSquare Feet: 1,67210040-1255015030
Clayton DSquare Feet: 1,67210040-1506010030
Ambassadeur ISquare Feet: 1,6529040-2007517540
Ambassadeur VSquare Feet: 1,6529040-2007517540
Clayton ASquare Feet: 1,55810040-1255015030
Le CafeSquare Feet: 1,5217025-1205015025
Ambassadeur IVSquare Feet: 1,3207040-2006012540
Ambassadeur IISquare Feet: 1,1809040-2007517540
Ambassadeur IIISquare Feet: 1,1807040-2006012540
PommardSquare Feet: 8685025-40407525
AnatoleSquare Feet: 8405025-40407525
MontmarteSquare Feet: 7265025-25406015
Presidential ParlorSquare Feet: 600-10-----
Suite 1500Square Feet: 375-8-----
VersaillesSquare Feet: 207-6-----
Clayton AtriumSquare Feet: 4,000---250---
Ambassadeur Pre-functionSquare Feet: 960---200---
DauphineSquare Feet: 840----40--