Lake Martha Days in Osseo
- Osseo, WI 54758
- Visit Website
- Dates: June 15, 2023 - June 18, 2023
- Recurrence: Recurring daily
- Location: Main Street Downtown
Annual 4-day festival celebrating Osseo's Scandinavian heritage. Carnivals, ethnic food stands, crafts, music, horse pull, triathlon, parade, and more.