The 10 largest delivered yachts in the world by length, from Azzam to Opera — every figure sourced to marine-industry data and dated.
The world's largest yachts are effectively small ships — displacement hulls stretching past 145 meters, with gross tonnages rivalling naval vessels. This list ranks the ten largest delivered yachts by length overall (LOA), the standard bow-to-stern measurement. Every length below is tied to a published source and the date we last checked it, because reputable outlets disagree on these figures more often than you would expect.
One vessel deliberately sits outside the ranking. REV Ocean (194.9 m) will be the largest yacht in the world once she enters service, but as of mid-2026 she is still outfitting at Damen Vlissingen with delivery targeted for the fourth quarter of 2026 — so she is not yet a delivered yacht. For the most expensive vessels rather than the longest, see our most expensive yachts list; for the quickest, the fastest yachts.
Yachts are ranked strictly by length overall among vessels that have actually been delivered. Each figure is drawn from Boat International's superyacht directory and carries the date it was verified. Where other reputable sources give a different length — Wikipedia, for instance, often rounds — the alternative figure is shown inline rather than hidden. Concepts that were never built (such as the Streets of Monaco) and vessels still under construction are excluded by design; they are held in our data so they cannot accidentally enter a ranking of real, delivered yachts.
Ranked by length overall, highest first. Every figure below links to the source it was checked against.
The longest yacht in the world since 2013. Lürssen built her for the late Sheikh Khalifa bin Zayed Al Nahyan of the UAE, and despite her size she is credited with a top speed above 30 knots.
Built by Lürssen, 2013 · Length overall: 180.61 m (593 ft) · Boat International · verified 8 Jul 2026
Sources disagree. Also reported: 180 m (591 ft) (Wikipedia (rounded)).
A state and support vessel of the Sultanate of Oman, built by Italy's Mariotti Yachts. Some rankings exclude her as a royal support ship rather than a private yacht.
Built by Mariotti Yachts, 2016 · Length overall: 164 m (538 ft) · Boat International · verified 8 Jul 2026
Roman Abramovich's Blohm+Voss flagship, and the longest yacht in the world from her 2010 delivery until Azzam overtook her in 2013.
Built by Blohm+Voss, 2010 · Length overall: 162.5 m (533 ft) · Boat International · verified 8 Jul 2026
Owned by Sheikh Mohammed bin Rashid Al Maktoum, ruler of Dubai. Her hull was begun by Blohm+Voss for the Brunei royal family and completed by Platinum Yachts.
Built by Platinum Yachts, 2006 · Length overall: 162 m (531 ft) · Boat International · verified 8 Jul 2026
A 2022 Lürssen delivery, reportedly built for Sheikh Mansour bin Zayed Al Nahyan.
Built by Lürssen, 2022 · Length overall: 160.6 m (527 ft) · Boat International · verified 8 Jul 2026
The largest yacht in the world by interior volume (15,917 GT), though not by length. Frozen in Hamburg under EU sanctions since 2022.
Built by Lürssen, 2016 · Length overall: 156 m (512 ft) · Boat International · verified 8 Jul 2026
A state yacht of the Sultanate of Oman built by Lürssen, reportedly with a hall large enough to seat a 50-piece orchestra.
Built by Lürssen, 2008 · Length overall: 155 m (509 ft) · Boat International · verified 8 Jul 2026
Formerly named Topaz; a Lürssen build associated with Sheikh Mansour bin Zayed Al Nahyan.
Built by Lürssen, 2012 · Length overall: 147.25 m (483 ft) · Boat International · verified 8 Jul 2026
Delivered in 1984, she was the longest yacht in the world for more than two decades and remains a Saudi royal vessel.
Built by Helsingør Værft, 1984 · Length overall: 147 m (482 ft) · Boat International · verified 8 Jul 2026
One of Lürssen's most recent giants, delivered in 2023.
Built by Lürssen, 2023 · Length overall: 146.35 m (480 ft) · Boat International · verified 8 Jul 2026
Yacht lengths are surprisingly contested. El Mahrousa, Egypt's 19th-century presidential vessel, is variously listed at 145.7 m and 150.6 m — a five-meter spread that would move her several places — so she is left off this delivered private-yacht list. Historic "largest yacht" titles also shift: Prince Abdulaziz held the record through the 1990s, Eclipse from 2010, and Azzam from 2013. REV Ocean is next in line.
The largest yachts afloat today are concentrated in a handful of German-built hulls and Gulf ownership, topped by Lürssen's Azzam at roughly 180 meters. The next record is already on the water in all but name: once REV Ocean is delivered, she will stretch the ceiling to nearly 195 meters. We update the figures above as vessels are delivered and as sources revise their measurements.
The fastest superyachts ever built, ranked by verified top speed — from the 73-knot Bolide 80 to the 60-knot record-breakers, every figure sourced and dated.
The 10 largest delivered yachts in the world by length, from Azzam to Opera — every figure sourced to marine-industry data and dated.
The 10 most expensive yachts in the world by estimated value — from Dilbar to Serene. Every price is an estimate, sourced and dated, because no shipyard discloses build cost.