Hold your gathering in one of our 14 Long Island event venues

Whether you’re hosting a gala fundraiser, a wedding reception, or a business seminar, our 18,500-square-foot event space at Radisson Hotel Hauppauge-Long Island offers 14 well-equipped venues to choose from. You can gather up to 700 guests for a celebration in the Grand Ballroom or host simultaneous business workshops in rooms like Encore and Diplomat. Consult our professional team to arrange details like audiovisual equipment and catering, and visit our on-site florist to pick out bouquets and centerpieces. Need to make a last-minute change to your handout? Free Wi-Fi is available, and our business center offers printing services. After your event, guests staying in our rooms and suites can grab a cocktail from Spiritz Lounge and unwind poolside.

Key features

  • 14 meeting rooms

  • 700 person max. capacity

  • Catering service

  • Free Wi-Fi

  • Natural daylight

  • Printing services

  • Wedding and event coordinator

Meeting rooms

Grand Ballroom

Beautifully styled with carpeted floors and ornate light fixtures, the Grand Ballroom makes an ideal setting for company presentations and extravagant wedding receptions. For more intimate events, the ballroom can be divided into Nassau A and B, Smithtown, and Suffolk with flexible setups.

Vanderbilt
Need space for a grand event? Book the Vanderbilt to host up to 400 people. The space offers natural lighting and access to audiovisual equipment for effective presentations.

Encore
Gather your group around the fireplace and bar for pre-meeting cocktails before heading up a short walkway into the expansive meeting side of the Encore room. This venue is the perfect place for a milestone celebration for up to 160 guests.

Seminar Theatre
When you need a comfortable space for an important meeting, book our Seminar Theatre with amphitheater-style seating. You can make an appointment with our on-site audiovisual technician to ensure the success of your presentation.

Diplomat
Nearly identical to the hotel’s Regency room, the Diplomat boasts natural light, a wet bar area for serving snacks and beverages, and access to private bathrooms for guests’ convenience.

Regency
Sit down to a catered banquet for up to 35 guests or gather for a presentation in a theater-style setup for up to 50 in the Regency room. This space is flooded with natural light, and a wet bar area enables you to serve refreshments to your attendees.

Huntington
Reserve our Huntington venue for a team meeting or business luncheon. We can set up tables, chairs, and linens to your preference, and free Wi-Fi enables you to stream information from your laptop.

Brookhaven
Similar to the Huntington, the Brookhaven space offers flexible seating arrangements for up to 50 guests. Catering and floral services put the extra touch on an unforgettable event.

Board Room
Host a business meeting or luncheon in the hotel’s Board Room, located just off the lobby. You can take advantage of our on-site technician for all your audiovisual needs and use our business center to print materials for your gathering.

Southfork
Ideal for small group meetings or family gatherings, the Southfork space is just off the lobby near the front desk. After your event, walk a few steps to the Fountain Grille restaurant for a bite to eat.

Hampton
The smallest of the hotel’s meeting spaces, the Hampton is perfect for hosting up to a dozen guests for a training seminar, a brainstorming session, or a team gathering.

Meeting rooms Size Theater Reception Classroom Banquet Square U-shape Conference
Grand Ballroom
6,356 ft²
700
525
375
450
-
-
-
Vanderbilt
3,372 ft²
400
275
220
200
80
100
80
Encore
2,808 ft²
140
160
120
110
55
55
48
Seminar Theatre
1,448 ft²
-
-
80
-
-
-
-
Diplomat
664 ft²
50
40
24
35
28
28
25
Regency
662 ft²
50
40
24
35
28
28
25
Huntington
659 ft²
55
40
32
40
30
25
25
Brookhaven
655 ft²
50
40
32
40
30
25
25
Board Room
617 ft²
50
40
32
40
30
25
25
Southfork
392 ft²
20
20
8
20
12
-
14
Hampton
306 ft²
-
-
-
-
-
-
12

Meeting rooms
Grand Ballroom

Size
6,356 ft²
Theater
700
Reception
525
Classroom
375
Banquet
450
Square
-
U-shape
-
Conference
-
Meeting rooms
Vanderbilt

Size
3,372 ft²
Theater
400
Reception
275
Classroom
220
Banquet
200
Square
80
U-shape
100
Conference
80
Meeting rooms
Encore

Size
2,808 ft²
Theater
140
Reception
160
Classroom
120
Banquet
110
Square
55
U-shape
55
Conference
48
Meeting rooms
Seminar Theatre

Size
1,448 ft²
Theater
-
Reception
-
Classroom
80
Banquet
-
Square
-
U-shape
-
Conference
-
Meeting rooms
Diplomat

Size
664 ft²
Theater
50
Reception
40
Classroom
24
Banquet
35
Square
28
U-shape
28
Conference
25
Meeting rooms
Regency

Size
662 ft²
Theater
50
Reception
40
Classroom
24
Banquet
35
Square
28
U-shape
28
Conference
25
Meeting rooms
Huntington

Size
659 ft²
Theater
55
Reception
40
Classroom
32
Banquet
40
Square
30
U-shape
25
Conference
25
Meeting rooms
Brookhaven

Size
655 ft²
Theater
50
Reception
40
Classroom
32
Banquet
40
Square
30
U-shape
25
Conference
25
Meeting rooms
Board Room

Size
617 ft²
Theater
50
Reception
40
Classroom
32
Banquet
40
Square
30
U-shape
25
Conference
25
Meeting rooms
Southfork

Size
392 ft²
Theater
20
Reception
20
Classroom
8
Banquet
20
Square
12
U-shape
-
Conference
14
Meeting rooms
Hampton

Size
306 ft²
Theater
-
Reception
-
Classroom
-
Banquet
-
Square
-
U-shape
-
Conference
12