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Species · Offshore

Atlantic Halibut

Hippoglossus hippoglossus

Rules in 5 state rulebooks, checked Sep 16, 2026. Every rule names its source and the day it was last checked; the official rulebook is the final word.

Atlantic Halibut
Drawing: NOAA Fisheries

How to tell it

Giant right-facing flatfish with a concave, crescent tail and a big toothy mouth.

Rules for

Every state

StateSizeBagSeasonToday
ConnecticutFederal rule (New England federal waters)41 in total length1 per vessel per tripOpen year-roundNOAA GARFO 2026 · checked Open
Maine41" min5 per vessel per year (25 charter)May 18 - Jun 13, no fishing Wednesdays or ThursdaysME DMR 2026 · checked Closed
MassachusettsFederal rule (New England federal waters)41 in total length1 per vessel per tripOpen year-roundNOAA GARFO 2026 · checked Open
New Hampshire41 in TL min1 fish per trip/vesselOpen year-roundNH F&G 2026 · checked Open
Rhode IslandFederal rule (New England federal waters)41 in total length1 per vessel per tripOpen year-roundNOAA GARFO 2026 · checked Open

Not specifically regulated in Alabama, Delaware, Florida (Atlantic), Florida (Gulf), Georgia, Louisiana, Maryland, Mississippi, New Jersey, New York, North Carolina, South Carolina, Texas, Virginia: each state’s rule for unlisted species applies there (on its page).

State records

StateWeightWhen, whereSource
Maine215 lb1965 · Bailey IslandMaine DMR Saltwater Angler Records (Rod & Reel) · checked 2026-08-23
Massachusetts321 lb1965 · Massachusetts BayMA DMF Saltwater Game Fish Records · checked 2026-09-04

On the table

Superb.

In the app

Point the camera at a atlantic halibut and the name appears before you take the picture, with these rules for the water you’re standing in. No signal needed, and every catch goes in the log.

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Questions anglers ask about atlantic halibut

What is the size limit for atlantic halibut?

It depends on the state. Connecticut: 41 in total length; Maine: 41" min; Massachusetts: 41 in total length; New Hampshire: 41 in TL min; Rhode Island: 41 in total length.

How many atlantic halibut can you keep?

Connecticut: 1 per vessel per trip; Maine: 5 per vessel per year (25 charter); Massachusetts: 1 per vessel per trip; New Hampshire: 1 fish per trip/vessel; Rhode Island: 1 per vessel per trip.

When is atlantic halibut season?

Maine: May 18 - Jun 13, no fishing Wednesdays or Thursdays.

How do you tell atlantic halibut from summer flounder?

Atlantic Halibut has this: Giant right-facing flatfish with a concave, crescent tail and a big toothy mouth.. Summer Flounder left-facing, rounded tail, eye-spots.

What is the record atlantic halibut?

321 lb in Massachusetts (1965), Massachusetts Bay. Other states’ records are in the table.