The name comes from a 1908 merger of two Ohio banks

Fifth Third Bank got its name from the 1908 combination of two Cincinnati banks: the Fifth National Bank and the Third National Bank. When they merged, they kept both names in the new company's title. The "Fifth" and "Third" refer to the ordinal positions those banks held in Cincinnati's banking landscape at the time, not to any mathematical operation or fraction.

The Fifth National Bank was founded in 1863, and the Third National Bank was established in 1871. Both were prominent institutions in Cincinnati before they joined forces. The merged entity became Fifth Third Bank, and that name has stuck for over 115 years, even as the bank has grown far beyond Ohio and acquired dozens of other institutions.

Today, Fifth Third operates as a regional bank holding company with branches across the Midwest and Southeast. The name is now simply a brand identity—most customers have no idea it refers to two 19th-century banks—but the company has kept it because the name is established, recognizable, and legally tied to their charter and regulatory history.

Key Takeaways

  • Fifth Third Bank's name comes from the 1908 merger of the Fifth National Bank and the Third National Bank, both based in Cincinnati, Ohio.
  • The "Fifth" and "Third" refer to the ordinal rankings of those banks in Cincinnati's financial system, not a fraction or mathematical concept.
  • The merged bank kept both names combined rather than choosing one or creating an entirely new name.
  • Fifth Third has since acquired many other banks and expanded across multiple states, but the original 1908 merger name remains the company's legal and brand identity.

Why banks kept merger names instead of rebranding

In the early 1900s, bank mergers were common as institutions consolidated to compete and survive. When two banks merged, the surviving entity often kept both names hyphenated or combined to honor both institutions and retain the customer loyalty and reputation each had built. Rebranding entirely would have meant losing the trust and recognition customers already had in the original names.

Fifth Third's founders chose to keep both names because each bank brought depositors, borrowers, and business relationships to the table. Dropping either name would have alienated customers of that bank. The combined name also signaled to the market that this was a merger of equals or near-equals, not a hostile takeover or absorption.

This naming convention was typical for major bank mergers of that era. Many regional and national banks that exist today carry names that reflect mergers from decades or even a century ago. The practice has largely faded—modern mergers often result in complete rebranding—but Fifth Third kept the historical name because it became legally embedded in the company's charter and regulatory filings.

How Fifth Third expanded beyond the original two banks

After the 1908 merger, Fifth Third Bank remained primarily a Cincinnati and Ohio institution for most of the 20th century. Beginning in the 1980s and accelerating through the 1990s and 2000s, the bank acquired dozens of smaller regional banks across the Midwest and Southeast. Each acquisition added branches, customers, and assets, but the parent company name stayed Fifth Third.

Some of the acquired banks kept their local names as subsidiary brands for a time—customers might see "Fifth Third Bank, doing business as [Local Bank Name]"—but over time most were fully integrated into the Fifth Third brand. This is standard practice in banking: the parent company name becomes the public face, while acquired banks either disappear or become internal divisions.

Today, Fifth Third operates in Ohio, Indiana, Illinois, Kentucky, Michigan, Pennsylvania, South Carolina, and Georgia. The bank is publicly traded on the NASDAQ stock exchange under the ticker symbol FITB. Despite its regional footprint, it remains much smaller than national banks like Bank of America, Chase, or Wells Fargo.

The legal and regulatory reasons the name persists

Bank names are not just marketing—they are tied to a company's charter, regulatory filings, and legal identity. Fifth Third Bank operates under a charter issued by the Office of the Comptroller of the Currency (OCC), and that charter names the institution as "Fifth Third Bancorp" or "Fifth Third Bank." Changing the legal name would require filing new charters, updating regulatory registrations, and renegotiating contracts tied to the old name.

The cost and complexity of a full legal rebrand is substantial. For a bank that has been operating under the same name for over a century, the name recognition and brand value often outweigh any benefit from rebranding. Fifth Third's leadership has determined that the name, despite its historical oddity, is worth keeping.

Additionally, Fifth Third's stock price, investor relations, and credit ratings are all tied to the Fifth Third Bancorp name. Changing it would create confusion in financial markets and require extensive communication with shareholders, creditors, and regulators. The cost would be millions of dollars for minimal business benefit.

What the name means for customers today

For most Fifth Third customers, the name is simply what they call their bank. Few think about its origin, and the bank does not emphasize the historical merger story in its marketing. The name is neutral—it does not convey what the bank does or where it operates, but it is distinctive and memorable, which is what matters for brand recognition.

The name has become a liability only in one respect: it is difficult to spell and pronounce for people unfamiliar with it. "Is it 'Fifth Third' or 'Fifth-Third'? Is it a fraction?" These questions come up regularly. The bank's official style is "Fifth Third" (two words, no hyphen), but the confusion persists. Some customers simply call it "53" or refer to it by the local bank name they remember from before the acquisition.

From a practical standpoint, the name does not affect how the bank operates, what services it offers, or how safe your deposits are. Fifth Third is a federally chartered bank, and deposits are insured by the Federal Deposit Insurance Corporation (FDIC) up to $250,000 per account holder per bank, regardless of what the bank is called.

Frequently Asked Questions

Is Fifth Third Bank a national bank or a regional bank?

Fifth Third is a regional bank, meaning it operates in a specific geographic area rather than nationwide. It has branches in eight states across the Midwest and Southeast, primarily Ohio, Indiana, Illinois, and Kentucky. It is much smaller than national banks like Chase or Bank of America, but it is a legitimate, federally regulated bank.

Does the name affect how safe my money is at Fifth Third?

No. Fifth Third is a federally chartered bank regulated by the Office of the Comptroller of the Currency. Deposits are insured by the FDIC up to $250,000 per depositor per bank. The name has no bearing on the bank's safety, stability, or insurance coverage.

Why didn't Fifth Third just pick one of the two original names?

Keeping both names honored both institutions and retained the customer loyalty and reputation each had built. Dropping one name would have alienated that bank's customers. The combined name also signaled that this was a merger of two established banks, not a takeover by one over the other.

Can I still use a local bank name if I have an account from a bank Fifth Third acquired?

Most acquired banks have been fully rebranded as Fifth Third over the years. Your account statements, debit card, and online banking will show "Fifth Third Bank" as the institution name. Some older accounts may still reference a legacy bank name, but the underlying account is held at Fifth Third.

Is Fifth Third planning to change its name?

There is no public indication that Fifth Third plans to rebrand. The name is established, legally embedded in the company's charter, and recognized across its operating regions. The cost and complexity of a rebrand would far outweigh any benefit at this point.