TierOne Bank
| Nasdaq: TONE | |
| Founded | 1907 in Lincoln, Nebraska |
| Defunct | June 4, 2010 |
| Fate | Failed, held in receivership by the FDIC; assets acquired by Great Western Bank |
| Successor | Great Western Bank |
| Headquarters | , |
Area served | Nebraska, Iowa, Kansas |
| Website | http://www.tieronebank.com/ (defunct) |
TierOne Bank was a bank based in Lincoln, Nebraska. It was founded in 1907. It traded on the Nasdaq stock exchange until its failure in June 2010. Following an investigation by the FBI and SIGTARP, charges were filed against multiple TierOne executives. The CEO, Gilbert G. Lundstrom, and several other executives and auditors faced charges related to the failure.