Events

Start Planning your meetings or events here

Tell us about your event, then we'll contact you and plan it together

3

Event Rooms

3416 SQ FT

Total Event Space

100

Capacity Largest Space

1

Breakout Rooms
Mariner Ballroom

Meeting and Events

Collaborate with up to 105 colleagues in our meeting spaces and event venues in National Harbor

Visit our complimentary on-site business center to prepare print, fax and copy for your event
Deliver a seamless meeting presentation with our high-speed Wi-Fi and modern in-room AV technology
Complement your event with customized catering, including coffee breaks and working lunches
Delight your guests with our convenient location in National Harbor, near Reagan National Airport
Trust our seasoned meeting planners to assist you with venue setup, room block reservations and more
Harbor Reception Room

Weddings and Occasions

Celebrate your love with a wedding in one of our elegant venues, including the stylish Harbor Room

Our event spaces showcase sophisticated design and can be adapted to suit your preferences
Stream music during your wedding reception and host a slideshow using in-room Wi-Fi and AV equipment
Accentuate your special day in National Harbor with delicious catering, crafted by our culinary team
Reserve a block of hotel rooms for a special rate and keep all of your event guests together
Post-wedding, you and your party can enjoy exploring National Harbor and ride the Capital Wheel
Private dining room
Rewarding Travel from start to Finish
Earn up to 60,000 points per qualified event with Marriott Bonvoy Events. Elite members earn more with bonus points.

Please note: all room sizes are approximate.

Meeting Room Dimensions (LxWxH) Area (sq.ft) Theater Schoolroom Conference U-Shape Reception Banquet
Harbor Room 25x56x11 1400 90 80 60 50 90 80
Harbor Room I 25x26x11 650 40 36 21 20 45 45
Harbor Room II 25x30x11 750 50 48 22 28 60 60
Potomac Boardroom 18x22x11 396 0 0 12 0 0 0
Gatehouse 72x28x11 2025 - - - - 100 80
Patio 53x26x13 1392 - - - - 50 -
Mariner 45x36x12 1620 90 80 60 50 90 90
Harbor Room
Dimensions (LxWxH)
25x56x11
Area (sq.ft)
1400
Theater
90
Schoolroom
80
Conference
60
U-Shape
50
Reception
90
Banquet
80
Harbor Room I
Dimensions (LxWxH)
25x26x11
Area (sq.ft)
650
Theater
40
Schoolroom
36
Conference
21
U-Shape
20
Reception
45
Banquet
45
Harbor Room II
Dimensions (LxWxH)
25x30x11
Area (sq.ft)
750
Theater
50
Schoolroom
48
Conference
22
U-Shape
28
Reception
60
Banquet
60
Potomac Boardroom
Dimensions (LxWxH)
18x22x11
Area (sq.ft)
396
Theater
0
Schoolroom
0
Conference
12
U-Shape
0
Reception
0
Banquet
0
Gatehouse
Dimensions (LxWxH)
72x28x11
Area (sq.ft)
2025
Theater
-
Schoolroom
-
Conference
-
U-Shape
-
Reception
100
Banquet
80
Patio
Dimensions (LxWxH)
53x26x13
Area (sq.ft)
1392
Theater
-
Schoolroom
-
Conference
-
U-Shape
-
Reception
50
Banquet
-
Mariner
Dimensions (LxWxH)
45x36x12
Area (sq.ft)
1620
Theater
90
Schoolroom
80
Conference
60
U-Shape
50
Reception
90
Banquet
90
Meeting Room Dimensions (LxWxH) Area (sq.mt) Theater Schoolroom Conference U-Shape Reception Banquet
Harbor Room 7.6x17.1x3.4 130.1 90 80 60 50 90 80
Harbor Room I 7.6x7.9x3.4 60.4 40 36 21 20 45 45
Harbor Room II 7.6x9.1x3.4 69.7 50 48 22 28 60 60
Potomac Boardroom 5.5x6.7x3.4 36.8 0 0 12 0 0 0
Gatehouse 21.9x8.5x3.4 188.1 - - - - 100 80
Patio 16.2x7.9x4 129.3 - - - - 50 -
Mariner 13.7x11x3.7 150.5 90 80 60 50 90 90
Harbor Room
Dimensions (LxWxH)
7.6x17.1x3.4
Area (sq.mt)
130.1
Theater
90
Schoolroom
80
Conference
60
U-Shape
50
Reception
90
Banquet
80
Harbor Room I
Dimensions (LxWxH)
7.6x7.9x3.4
Area (sq.mt)
60.4
Theater
40
Schoolroom
36
Conference
21
U-Shape
20
Reception
45
Banquet
45
Harbor Room II
Dimensions (LxWxH)
7.6x9.1x3.4
Area (sq.mt)
69.7
Theater
50
Schoolroom
48
Conference
22
U-Shape
28
Reception
60
Banquet
60
Potomac Boardroom
Dimensions (LxWxH)
5.5x6.7x3.4
Area (sq.mt)
36.8
Theater
0
Schoolroom
0
Conference
12
U-Shape
0
Reception
0
Banquet
0
Gatehouse
Dimensions (LxWxH)
21.9x8.5x3.4
Area (sq.mt)
188.1
Theater
-
Schoolroom
-
Conference
-
U-Shape
-
Reception
100
Banquet
80
Patio
Dimensions (LxWxH)
16.2x7.9x4
Area (sq.mt)
129.3
Theater
-
Schoolroom
-
Conference
-
U-Shape
-
Reception
50
Banquet
-
Mariner
Dimensions (LxWxH)
13.7x11x3.7
Area (sq.mt)
150.5
Theater
90
Schoolroom
80
Conference
60
U-Shape
50
Reception
90
Banquet
90
Banquet
Generally used for meals and sessions involving small group discussions. A five foot round table seats eight people comfortably. A six foot round table seats 10 people comfortably.
Conference and Hollow Square
Appropriate for interactive discussions and note-taking sessions for fewer than 25 people. Many hotels have elegant "boardrooms" for 10 to 20 people, equipped with full audiovisual capabilities, a writing board, cork board and a flip chart.
E-Shape, U-Shape and T-Shape
Appropriate for groups of fewer than 40 people. These are best for interaction with a leader seated at the head of the setup. Audiovisual is usually best set up at the open end of the seating.
Theater
Appropriate for large sessions and short lectures that do not require extensive note-taking. This is a convenient setup to use before breaking into discussion or role-playing groups because chairs can be moved.
Reception
Stand-up social function where beverages and light foods are served. Foods may be presented on small buffet tables or passed by servers. May precede a meal function.
Schoolroom or Classroom
The most desirable setup for medium to large-size lectures. Requires a relatively large room. Tables provide attendees with space for spreading out materials and taking notes.
Ovals and Rounds
Generally used for meals and sessions involving small group discussions. A five foot round table seats eight people comfortably. A six foot round table seats 10 people comfortably.
Audio-Visual Equipment
  • 35MM Projector
  • LCD Panel
  • LCD Projector
  • Microphone
  • Overhead Projector
  • TV
  • TV Production Service Provider
  • Teleconferencing
  • Wireless Internet
Event Equipment & Supplies
  • Easels
  • Flip Chart & Markers
  • Name Cards
  • Pens / Pencils / Notepad
  • Podium Lectern
  • Stack Chairs
  • Tables
Business Services
  • Computers
  • Copy Service
  • Fax Service
  • Overnight Delivery/Pickup
  • Post/Parcel
  • Printers
Catering Services
  • Afternoon Break:$17.50 / Person
  • Coffee Break:$9.00 / Person
  • Continental Breakfast:$22.00 / Person
  • Dinner:$70.00 / Person
  • Full Breakfast:$21.50 / Person
  • Lunch:$34.00 / Person
  • Reception:$29.00 / Person

Residence Inn National Harbor Washington, DC Area