People with the last name Ostdiek in Illinois
- Allison Ostdiek
- Ar Ostdiek
- Barbara Ostdiek
- Dan Ostdiek
- Dana Ostdiek
- E Thomas Ostdiek
- Gilbert Ostdiek
- Glen Ostdiek
- John Ostdiek
- Karen Ostdiek
- Laverne Ostdiek
- Lynda Ostdiek
- Marion Ostdiek
- Mark Ostdiek
- N Ostdiek
- Nancy Ostdiek
- Patricia Ostdiek
- Patti Ostdiek
- Sarah Ostdiek
- Saundra Ostdiek
- Ted Ostdiek
- Thomas Ostdiek
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