| Development | |
|---|---|
| Designer | Jim Brown |
| Year | 1960s |
| Boat | |
| Crew | 1-5 |
| Draft | 2.08 ft (0.63 m) (hull) 6.33 ft (1.93 m) (centerboard) |
| Hull | |
| Type | Trimaran |
| Construction | Fiberglass over plywood |
| Hull weight | 8,500 lb (3,900 kg) |
| LOA | 37.33 ft (11.38 m) |
| LWL | 34.33 ft (10.46 m) |
| Beam | 5.83 ft (1.78 m) (center hull) 22.25 ft (6.78 m) (full beam) |
| Rig | |
| Mast height | 45 ft (14 m) (length) 48.5 ft (14.8 m) (bridge clearance) |
| Sails | |
| Mainsail area | 268 sq ft (24.9 m2) |
Total sail area | 760 sq ft (71 m2) |


The Searunner 37 is a trimaran sailboat designed by Jim Brown in the 1960s. It is the second largest boat in the Searunner series, the largest being the Searunner 40.
Jim Brown stayed with Piver's narrow-waisted hulls while introducing the centerboard, center cockpit, and cutter rig. Of the 47 multihulls we spotted outside U.S. waters, 13 were Brown designs. While poor payload capacity and hobby-horsing are owner complaints with the 31 and 37, his 40-footer gets high marks. The Searunner's safety record is outstanding. Its divided accommodation provides the best ventilation of any boat in the tropics.
— Randy Thomas, Yachting (1985)