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Michael “Mike” Paul Sieth, age 70, passed away peacefully on Saturday, May 10, 2025, in Oshkosh, WI.

Mike is survived and missed by: his loving wife, Debra (née Miller); his eldest son, Matthew, and wife, Samantha; his youngest son, Adam, and wife, Bryn; his grandchildren, Maxwell and Ginger; his sisters, Sharon and Patti; and his brother, Robert.

He was preceded in death by his parents, Harrold and Marjorie (née Sorensen); and a sister, Carol.

Mike grew up in Marinette and later moved to Oshkosh, where he met Debra, who he married in 1982. He loved running half marathons, exercising at the YMCA, and exploring new places through travel. He relished going on spontaneous field trips with his wife to coffee shops, breweries, and local haunts. Most of all, Mike cherished time with his family, especially his children and grandchildren. Though quiet by nature, Mike had a gift for bringing laughter to any room. His kindness and humor will be deeply missed.

A visitation will be Saturday, May 17, 2025, from 12:00 noon to 3:00 p.m. at All Saints Lutheran Church 1072 Honey Creek Rd. Oshkosh. A funeral service will be held on Saturday at 3:00 p.m. at the church.

In lieu of flowers, please donate in Mike’s name to either the Multiple Myeloma Research Foundation or pdsF.U.S.I.O.N. Inc.

Mueller Funeral Home-Winneconne is assisting the family. If you wish, please submit online condolences/memories to muellerfh.net.