Sailing catamaran

Lagoon 55 Millenium

The Millenium edition gives you six cabins of equal size — no "lesser" guest cabin, which changes how a boat this size actually gets used.

60'4"Length overall

54'4"Hull length

29'6"Beam

4, 5 or 6Cabins

1.55 m / 5'1"Draft

2 × 110 HPEngines

Configure this Lagoon Request a brochure See the photographs

Built to be sailed by one person

Main and self-tacking genoa are both set up for single-handed work, and the mainsheet track was moved onto the bimini so the aft beam is clear. On a boat of this size that is a safety decision as much as an ergonomic one — nobody is working a loaded sheet across an open transom.

Six cabins, none of them the short straw

The Millenium layout gives you six cabins of genuinely equal size. If you have ever had to decide which couple gets the small one, you already understand why that changes how the boat gets used.

Design

Nauta Design

Specifications published by Lagoon, verified August 2026. Manufacturer page →

Gallery

Lagoon 55 Millenium, photographed

Lagoon's own photography of this boat — not a stand-in from another model.

Lagoon 55 Millenium — Under sail — Under sail

Lagoon 55 Millenium — Under way — Under way

Lagoon 55 Millenium — From the air — From the air

Lagoon 55 Millenium — At anchor — At anchor

Lagoon 55 Millenium — Along the coast — Along the coast

Lagoon 55 Millenium — From astern — From astern

Lagoon 55 Millenium — On the bow — On the bow

Lagoon 55 Millenium — Sunset at anchor — Sunset at anchor

Lagoon 55 Millenium — In the anchorage — In the anchorage

Lagoon 55 Millenium — Making way — Making way

Lagoon 55 Millenium — The salon — The salon

Lagoon 55 Millenium — The galley — The galley

Lagoon 55 Millenium — Owner’s cabin — Owner’s cabin

Lagoon 55 Millenium — A guest cabin — A guest cabin

Lagoon 55 Millenium — The heads — The heads

Lagoon 55 Millenium — Below deck — Below deck

Lagoon 55 Millenium — Forward cabin — Forward cabin

Lagoon 55 Millenium — Salon looking aft — Salon looking aft

Lagoon 55 Millenium — Cabin detail — Cabin detail

Recognition

What the judges and the testers said

Awards are listed as won or nominated, never blurred together. Launch previews written from renderings are marked as previews, because they are not sea trials.