First Bank
- Afriland First Bank
- First American Bank (disambiguation)
- First American National Bank
- First BanCorp
- First Bancorp
- First Bank (Romania)
- First Bank F.C.
- First Bank System
- First Bank of Nigeria
- First Commercial Bank (disambiguation)
- First Commonwealth Bank
- First Federal Bank (disambiguation)
- First Gulf Bank
- First International Bank
- First Interstate Bank (disambiguation)
- First MicroFinance Bank-Pakistan
- First MicroFinance Bank-Tajikistan
- First Midwest Bank
- First National Bank (disambiguation)
- First Pacific Bank
- First Pennsylvania Bank
- First Security Bank
- First State Bank (disambiguation)
- First Trust Bank
- First Westroads Bank
- First Women Bank Limited
- FirstBank (Puerto Rico)
- FirstBank Building
- FirstBank Holding Co
- FirstCaribbean International Bank
- Seafirst Bank
- Security First Network Bank