People with the last name Ostwald in Wisconsin
- Adam Ostwald
- Annette Ostwald
- Bethany Ostwald
- Clare Ostwald
- David Ostwald
- James Ostwald
- Jonathan Ostwald
- Judith Ostwald
- Kim Ostwald
- Marcia Ostwald
- Marlyn Ostwald
- Mary Ostwald
- Michael Ostwald
- Mildred Ostwald
- Molly Ostwald
- Paul Ostwald
- Phyllis Ostwald
- Richard Ostwald
- Robert Ostwald
- Ronald Ostwald
- Sadie Ostwald
- Sam Ostwald
- Steven Ostwald
- Tammi Ostwald
- Teresa Ostwald
- Wayne Ostwald
- William Ostwald
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