Carnival Mardi Gras OS Suite Cabins
Cabin category OS is a standard-size suite on Carnival Mardi Gras: 115 OS cabins on decks 9, 10, 11 and 12, from 287 to 410 sq ft with balconies of 54 to 205 sq ft.
Carnival Mardi Gras OS suite floor plan
- Sleeps
- Up to 5 guests84 cabins sleep 2 · 11 sleep 3 · 9 sleep 4 · 11 sleep 5
- Beds
- Two twin beds (convert to king)
- Bathroom
- Full deluxe bathroom with walk-in shower
- Living space
- Vanity with illuminated mirrorSeparate sitting area with sofa and coffee table · Ample closet space
How Carnival Mardi Gras OS cabins compare
Carnival Mardi Gras OS suite cabins are standard size: the same 287 sq ft as 2 other suite categories, with a 54 sq ft balcony, the smallest among suite categories; none of its cabins are connecting cabins.
OS: 287 sq ft · tied #8 with 2 others of 10 suite categories
Find Carnival Mardi Gras OS cabins on the deck plan
Deck 9 · 95 OS cabins
Swipe to pan · tap a cabinHover a cabin · click to pinClosest alternatives to Carnival Mardi Gras OS
Only what's different from OS is shown.
More room inside and out
Where OS suite cabins sit on Carnival Mardi Gras
Most OS cabins are aft: 56% of those with a recorded position. OS cabins are on decks 9, 10, 11 and 12; deck 9 has the most (95).
What's inside a Carnival Mardi Gras OS suite
On Carnival Mardi Gras, Ocean Suite staterooms (category OS) measure 287 sq ft, plus a 54 sq ft balcony, and sleep up to 5 guests. Private large balcony with patio chairs and table. Beds: two twin beds (convert to king). Carnival Mardi Gras has 111 OS cabins, on decks 9–12.
Full deluxe bathroom with walk-in shower. Vanity with illuminated mirror, separate sitting area with sofa and coffee table, and ample closet space.
Included
- Priority check-in and boarding
- Immediate access to your suite after boarding
- Priority main dining room time assignment (Early, Late or Your Time Dining)
- Priority debarkation at homeport, and ports of call requiring a water shuttle or with arrival times later than 9:30 AM
- Complimentary wash & fold laundry service (1 bag per cruise)
- Two large bottles of water
- Pillow-top mattresses
- ELEMIS in-stateroom bath products
- Bathrobes
- Dedicated stateroom attendant
- Soft, cozy linens
- Plenty of closet and drawer space
- In-room safe for valuables
- Television
- Stateroom climate control
Carnival Mardi Gras OS cabin photos
All 115 cabins in category OS
Deck 9
95 cabinsDeck 10
8 cabinsAccessible OS cabins
Known issues in cabin category OS
No issues recorded for OS cabins.
Suite prices on Carnival Mardi Gras
Prices are by cabin type. We don't price individual categories like OS; "See suite fares" opens current suite fares with our booking partner.
Suite is $49 more per night than a balcony.
Fares as of Oct 7, 2026. Prices change daily.
45% of upcoming Suite sailings are currently below their recent average fare.
OS on other Carnival ships
Carnival Mardi Gras OS cabin FAQ
How big is a Carnival Mardi Gras OS suite?
Most Carnival Mardi Gras OS cabins are 287 sq ft; sizes run from 287 to 410 sq ft. Their balconies run from 54 to 205 sq ft. That is the most common suite size on Carnival Mardi Gras.
How many Carnival Mardi Gras OS cabins are there, and on which decks?
Carnival Mardi Gras has 115 OS cabins: 95 on deck 9, 8 on deck 10, 6 on deck 11 and 6 on deck 12.
How many people can stay in a Carnival Mardi Gras OS cabin?
Carnival Mardi Gras OS cabins sleep up to five. 84 cabins sleep 2, 11 sleep 3, 9 sleep 4 and 11 sleep 5.
What's the difference between cabin category OS and OT on Carnival Mardi Gras?
Carnival Mardi Gras OS and OT cabins are the same size (287 + 54 sq ft). OT cabins are on decks 14, 15 and 16; OS cabins are lower, on decks 9, 10, 11 and 12.
Do Carnival Mardi Gras OS cabins connect?
No Carnival Mardi Gras OS cabins are recorded as connecting cabins.