Martha Jane
- Type: Sailboat
- Designer: Philip Bolger
- Foil: Leeboard
- Cabin: Yes
- Length: 23'6"
- Beam: 6'
- Draft: 7"
- Weight
- Empty: 1300 lbs.
- Displacement: 2350 lbs.
- Ballast: 500 lbs.
- Sails:
- Main: Balanced lug 200 sq.ft.
- Mizzen: Sprit 47 sq.ft.
- Links:
- The Zeiger Family Boat Building Page
- Square Boats
- Mike Stockstill