Brent Osthus Obituary

We are sad to announce that, on January 2, 2026 we had to say goodbye to Brent Osthus of Sioux Falls, South Dakota. Family and friends can send flowers and/or light a candle as a loving gesture for their loved one. Leave a sympathy message to the family in the guestbook on this memorial page of Brent Osthus to show support.

He was predeceased by: his parents, Clifford Osthus and Arlene Osthus (Erickson); and his brother Gordon. He is survived by: his wife Dianne K. Osthus of Sioux Falls, SD; his son Chad Osthus (Kristi) of Watertown, SD; his grandchildren, Morgan and Macee; his daughter Emily Osthus of Sioux Falls, SD; his grandchildren, Shelbie (Austin) and Reeghan; his son Paul Osthus (Andrea) of Baltic, SD; his grandchildren, Tony and Lola; his great grandchild Gianna; his siblings, Larry Osthus (Jodi) of Des Moines, IA and Brenda Smith (Merlin) of Sioux Falls, SD; and his sister-in-law Lynn Osthus of Watertown, SD. He is also survived by many nieces and nephews.