Fishing spots, fishing reports, and regulations in
O'Brien Reservoir
Logged catches
Top fish species at O'Brien Reservoir
Check which species have trophy potential in O'Brien Reservoir
O'Brien Reservoir fishing reports
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When is the Northern Pike biting in O'Brien Reservoir?
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Fishing regulations at O'Brien Reservoir, MN
Disclaimer: Always check local fishing regulations, water access rights and land ownership before fishing, regardless of any catches logged in that area by the Fishbrain community. Fishbrain has mapped millions of acres of government-owned land across the USA to help you identify potential fishing access, but you are responsible for ensuring compliance with all legal requirements.
Fishing regulations in Minnesota can change throughout the year. Make sure to check this page before fishing for the most up to date rules and regulations for the current season. Local regulations govern when you can fish, the max size of the fish you can keep, how many fish you can keep, and more.
Below you will see fishing regulations for catching species as of May 13, 2025. To view regulations for a different fish species, please click on your preferred species in the drop-down.
FAQ about O'Brien Reservoir fishing
- Northern pike - 6 members reported to have caught this fish
- Largemouth bass - 6 members reported to have caught this fish
- Rock bass - 3 members reported to have caught this fish
- @luke_fishing30 reported a nice Largemouth bass.
- @superoliver reported a nice Northern pike.
- @superoliver reported a nice Walleye.
- @juliabird reported a nice Rock bass.
- @juliabird reported a nice Rock bass.
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