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Open data · every figure carries its source

Largest in this registry
#10,265
of 84,014 with a recorded tonnage
Largest cruise ship
#237
of 504 of this type with a recorded tonnage
Largest in its fleet
#3
of 5 in this fleet with a recorded tonnage
In brief
Seven Seas Mariner is a cruise ship operated by Regent Seven Seas Cruises (formerly Radisson Seven Seas Cruises). She was the first all-suite, all-balcony ship in the world, and was awarded "Ship of the Year" in 2002 by Ocean and Cruise News. Also, she was the first to offer dining by the famous Le Cordon Bleu of Paris in one of the onboard restaurants. Her staff to guest ratio is 1 to 1.6.
In 2009, Seven Seas Mariner made the news when it rescued an around-the-world-sailor from a crippled sailing yacht west of New Zealand.
In March 2022, the ship was almost hit by a tornado as it departed the port of New Orleans. No damage or casualties were reported.
In February, 2026 the ship was hit with a mass outbreak of gastrointestinal illness while sailing from Miami to Honolulu.
Vessel particulars
Every value is as recorded in the source. Blanks are values the source does not hold — none is estimated from a sister ship or a class average.
Identification
Construction
Measurements
In context
Every figure in this section is a count, a rank or a percentile over vessels actually held in this registry — not over the world fleet, which is larger. Nothing here is estimated.
At 48,075 gross tons, Seven Seas Mariner is the 10,265th largest of the 84,014 vessels in this registry that report a tonnage. The median across that set is 5,994 GT, so this hull is about 8.0 times the typical vessel on record here. The largest measures 499,167 GT.
Among the 665 cruise ships held here, it ranks 237th by tonnage — larger than 53% of that group. Their median tonnage is 43,009 GT, and the largest tenth begin at 143,289 GT. The flag most often flown by this group is The Bahamas (133 ships). The yard that appears most often against it is Fincantieri, with 112 hulls on record.
The Bahamas is the country of registry for 1,614 vessels in this directory, of which Seven Seas Mariner is the 491st largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (940 ships), and the median vessel measures 30,020 GT. Browse every ship flagged The Bahamas.
Narrowing to both dimensions at once, this registry holds 133 cruise ships flying the The Bahamas flag, of which 68 are larger by tonnage.
Seven Seas Mariner was built in 2001, making it 25 years old. It is one of 1,268 hulls in this registry delivered that year, a cohort whose median tonnage is 14,062 GT; within it this ship is the 166th largest. Across the whole of the 2000s the registry holds 18,605 vessels, median 9,957 GT. The median build year across the entire registry is 1995.
The registry attributes 123 vessels to Chantiers de l'Atlantique, with a median tonnage of 63,786 GT, delivered between 1912 and 2026. See the rest of that yard’s output.
At 216.0 m overall, Seven Seas Mariner is 17.9 m longer than the 198.1 m median for cruise ships on record, with a beam of 28.8 m and a draft of 7.0 m.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9210139 this registry holds 48 other vessels, whose median build year is 2000 and which range from 1999 to 2003. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 2001.
Its IMO number, 9210139, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 2×6 + 1×5 + 0×4 + 1×3 + 3×2 = 89 — and the last digit of that total, 9, must equal the seventh digit, 9. It does, so this number is well formed.
Nearest by tonnage among cruise ships
| Ship | Built | Gross tonnage |
|---|---|---|
| MV Regent Sky | 2008 | 50,000 |
| MS Empress | 1990 | 48,563 |
| Ambition | 1999 | 48,200 |
| Seven Seas Mariner (this ship) | 2001 | 48,075 |
| Viking Mars | 2022 | 47,842 |
| MV Viking Sky | 2017 | 47,842 |
| Viking Sea |
Same yard, same years
No ship class is recorded for this vessel, so these are not asserted to be sister ships — they are contemporaries from the same builder, shown because that is what the data supports.

Coral Princess
2002 · 91,627 GT · Bermuda
Celebrity Millennium
2000 · 90,963 GT · Malta

Celebrity Summit
2001 · 90,940 GT · Malta

Celebrity Infinity
2001 · 90,940 GT · Malta

Celebrity Constellation
2002 · 90,280 GT · Malta
MSC Sinfonia
2002 · 65,542 GT · Panama

Azamara Journey
2000 · 30,277 GT · Malta

Azamara Quest
2000 · 30,277 GT · Malta
Same fleet
Provenance
Vessel recordWikidata, released under CC0, keyed on this ship’s IMO number.
Written summaryQuoted from Seven Seas Mariner on English Wikipedia, reused under CC BY-SA 4.0.
PhotographBy 663highland, reused under CC BY 2.5.
| 2016 |
| 47,800 |