Banks starting with O

Find a bank's routing numbers, starting with O.

O And R Utilities Employees — credit union, NY; 1 routing number (cross-checked)
O Bee — credit union, WA; 1 routing number (cross-checked)
O.a.s. Staff — credit union, DC; no routing number published yet
O'Bannon Banking Company — bank, MO, obannonbank.com; 1 routing number (cross-checked)
Oahe — credit union, SD; 1 routing number (cross-checked)
Oak Bank — bank, WI, oak.bank; 2 routing numbers (cross-checked)
Oak Cliff Christian — credit union, TX; 1 routing number (cross-checked)
Oak Farms Employees — credit union, TX; 1 routing number (cross-checked)
Oak Lawn Municipal Employees — credit union, IL; no routing number published yet
Oak Valley Community Bank — bank, CA, ovcb.com; 2 routing numbers (cross-checked)
Oak View National Bank — bank, VA, oakviewbank.com; 1 routing number (cross-checked)
Oakdale — credit union, WI; 1 routing number (cross-checked)
Oakstar Bank — bank, MO, oakstarbank.com; 3 routing numbers (cross-checked)
Oakwood Bank — bank, WI, oakwoodbank.net; 1 routing number (cross-checked)
Oakworth Capital Bank — bank, AL, oakworth.com; 1 routing number (cross-checked)
Oc — credit union, OH; no routing number published yet
Ocala Community — credit union, FL; 1 routing number (cross-checked)
Ocean Bank — bank, FL, oceanbank.com; 1 routing number (cross-checked)
Ocean County Employees — credit union, NJ; no routing number published yet
Ocean Financial — credit union, NY; 1 routing number (cross-checked)
Ocean State — credit union, RI; 1 routing number (cross-checked)
Oceanair — credit union, CA; no routing number published yet
OceanFirst Bank — bank, NJ, oceanfirst.com; 5 routing numbers (cross-checked)
Ocnac #1 — credit union, NJ; no routing number published yet
Oconee Federal Savings and Loan Association — bank, SC, oconeefederal.com; no routing number published yet
Oconee State Bank — bank, GA, oconeestatebank.com; 1 routing number (cross-checked)
Odessa Employees — credit union, TX; 1 routing number (cross-checked)
Odin State Bank — bank, MN, odinstatebank.com; 1 routing number (cross-checked)
Ohio County Public Schools — credit union, WV; no routing number published yet
Ohio Educational — credit union, OH; 1 routing number (cross-checked)
Ohio Healthcare — credit union, OH; no routing number published yet
Ohio State Bank — bank, OH, bankatosb.com; no routing number published yet
Ohio Teamsters — credit union, OH; 2 routing numbers (cross-checked)
Ohio Valley — credit union, OH; no routing number published yet
Ohio Valley Community — credit union, OH; 1 routing number (cross-checked)
Ohnward Bank & Trust — bank, IA, ohnwardbank.bank; 2 routing numbers (cross-checked)
Ok — credit union, OK; no routing number published yet
Ok Members First — credit union, OK; no routing number published yet
Okaloosa County Teachers — credit union, FL; no routing number published yet
Oklahoma — credit union, OK; no routing number published yet
Oklahoma Bank and Trust Company — bank, OK, oklabank.com; 1 routing number (cross-checked)
Oklahoma Capital Bank — bank, OK, oklahomacapitalbank.com; 1 routing number (cross-checked)
Oklahoma Central — credit union, OK; 2 routing numbers (cross-checked)
Oklahoma Educators — credit union, OK; 1 routing number (cross-checked)
Oklahoma State Bank — bank, OK, osbbuffalo.com; 3 routing numbers (cross-checked)
Oklahoma's — credit union, OK; 1 routing number (cross-checked)
Okunity — credit union, OK; no routing number published yet
Olathe — credit union, CO; no routing number published yet
Old Dominion National Bank — bank, VA, odnb.bank; 1 routing number (cross-checked)
Old Glory Bank — bank, OK, oldglorybank.com; no routing number published yet
Old Hickory — credit union, TN; 1 routing number (cross-checked)
Old Kentucky Home — credit union, KY; no routing number published yet
Old National Bank — bank, IN, oldnational.com; 6 routing numbers (cross-checked)
Old Ocean — credit union, TX; no routing number published yet
Old Plank Trail Community Bank — bank, IL, oldplanktrailbank.com; 3 routing numbers (cross-checked)
Old Second National Bank — bank, IL, oldsecond.com; no routing number published yet
Old Spanish Trail — credit union, LA; 1 routing number (cross-checked)
Old West — credit union, OR; 2 routing numbers (cross-checked)
Olean Teachers' And Postal — credit union, NY; 2 routing numbers (cross-checked)
Olive View Employees — credit union, CA; no routing number published yet
Olivet Baptist — credit union, TN; no routing number published yet
Olympia — credit union, WA; 1 routing number (cross-checked)
Olympia Federal Savings and Loan Association — bank, WA, olyfed.com; 1 routing number (cross-checked)
Omaha — credit union, NE; 1 routing number (cross-checked)
Omaha Douglas — credit union, NE; 1 routing number (cross-checked)
Omaha Firefighters — credit union, NE; no routing number published yet
Omaha Police — credit union, NE; 1 routing number (cross-checked)
Omaha Public Power Dist Emp — credit union, NE; no routing number published yet
Omb Bank — bank, MO, ombbank.com; no routing number published yet
Omega — credit union, PA; 4 routing numbers (cross-checked)
Omega Psi Phi Fraternity — credit union, GA; 1 routing number (cross-checked)
Omni Community — credit union, MI; 2 routing numbers (cross-checked)
On Tap — credit union, CO; 2 routing numbers (cross-checked)
On The Grid Financial — credit union, GA; 1 routing number (cross-checked)
One — credit union, VT; no routing number published yet
One American Bank — bank, SD, oneamericanbank.com; 1 routing number (cross-checked)
One Bank of Tennessee — bank, TN, onebanktn.com; no routing number published yet
One Community — credit union, WV; no routing number published yet
One Community Bank — bank, WI, onecommunity.bank; no routing number published yet
One Credit Union OF NY — credit union, NY; no routing number published yet
One Detroit — credit union, MI; 1 routing number (cross-checked)
One Florida Bank — bank, FL, onefloridabank.com; no routing number published yet
One Nevada — credit union, NV; 1 routing number (cross-checked)
One Source — credit union, TX; 2 routing numbers (cross-checked)
One South — credit union, MS; 1 routing number (cross-checked)
One Thirteen — credit union, CO; 1 routing number (cross-checked)
One Vision — credit union, IN; 2 routing numbers (cross-checked)
One World Bank — bank, TX, oneworldbank.com; 1 routing number (cross-checked)
Oneaz — credit union, AZ; 1 routing number (cross-checked)
Oneida County — credit union, NY; 1 routing number (cross-checked)
OneLocal Bank — bank, MA, onelocalbank.com; no routing number published yet
Onenebraska — credit union, NE; no routing number published yet
OneUnited Bank — bank, MA, oneunited.com; 4 routing numbers (cross-checked)
Onomea — credit union, HI; 1 routing number (cross-checked)
Onpath — credit union, LA; no routing number published yet
Onpoint Community — credit union, OR; 1 routing number (cross-checked)
Ontario Public Employees — credit union, CA; 1 routing number
Ontario Shores — credit union, NY; 1 routing number (cross-checked)
Oostburg State Bank — bank, WI, oostburgstate.bank; 1 routing number (cross-checked)
Opc — credit union, OR; no routing number published yet
Open Bank — bank, CA, myopenbank.com; 1 routing number (cross-checked)
Operating Engineers Local Union #3 — credit union, CA; no routing number published yet
Opp-micolas — credit union, AL; 1 routing number (cross-checked)
Opportunity Bank of Montana — bank, MT, opportunitybank.com; 2 routing numbers (cross-checked)
OptimumBank — bank, FL, optimumbank.com; 1 routing number (cross-checked)
Options — credit union, CO; no routing number published yet
Optum Bank, Inc. — bank, UT, optumbank.com; 1 routing number (cross-checked)
OPTUS Bank — bank, SC, optus.bank; no routing number published yet
Orange Bank & Trust Company — bank, NY, orangebanktrust.com; 1 routing number (cross-checked)
Orange County's — credit union, CA; 2 routing numbers (cross-checked)
Oregon Coast Bank — bank, OR, oregoncoast.bank; 1 routing number (cross-checked)
Oregon Community — credit union, OR; 4 routing numbers (cross-checked)
Oregon Pacific Banking Company dba Oregon Pacific Bank — bank, OR, oregonpacificbank.com; no routing number published yet
Oregon State — credit union, OR; 2 routing numbers (cross-checked)
Oregonians — credit union, OR; 1 routing number (cross-checked)
Orem City Employees — credit union, UT; no routing number published yet
Organized Labor — credit union, CA; 1 routing number (cross-checked)
Oriental Bank — bank, PR, orientalbank.com; 7 routing numbers (cross-checked)
Origin Bank — bank, LA, origin.bank; no routing number published yet
Orion — credit union, TN; 2 routing numbers (cross-checked)
Orlando — credit union, FL; 1 routing number (cross-checked)
Orleans Parish Sheriff's — credit union, LA; no routing number published yet
Orlex Government Employees — credit union, VT; no routing number published yet
Ornl — credit union, TN; 1 routing number (cross-checked)
Orrstown Bank — bank, PA, orrstown.com; 3 routing numbers (cross-checked)
OSB Community Bank — bank, IL, myosb.bank; 1 routing number (cross-checked)
Osgood Bank — bank, OH, osgoodbank.com; no routing number published yet
Oshkosh Community — credit union, WI; no routing number published yet
Oswego County — credit union, NY; no routing number published yet
Oswego Teachers Employees — credit union, NY; no routing number published yet
Oteen V. A. — credit union, NC; no routing number published yet
Otero — credit union, NM; 1 routing number (cross-checked)
Otis — credit union, ME; 1 routing number (cross-checked)
Otoe-missouria — credit union, OK; no routing number published yet
Ottawa Hiway — credit union, IL; 1 routing number (cross-checked)
Ou — credit union, OK; no routing number published yet
Ouachita Valley — credit union, LA; 1 routing number (cross-checked)
Oucu Financial — credit union, OH; no routing number published yet
Our — credit union, MI; no routing number published yet
Our Community — credit union, WA; 2 routing numbers (cross-checked)
Our Family Social — credit union, NE; 1 routing number (cross-checked)
Our Lady OF Snows — credit union, MO; 1 routing number
Our Mother OF Mercy Parish Houston — credit union, TX; no routing number published yet
Outdoor Bank — bank, KS, outdoorbank.com; no routing number published yet
Outreach — credit union, TN; no routing number published yet
Owen County State Bank — bank, IN, ocsbank.com; 1 routing number (cross-checked)
Owensboro — credit union, KY; 1 routing number (cross-checked)
Owingsville Banking Company — bank, KY; 1 routing number (cross-checked)
Oxford — credit union, ME; no routing number published yet
Oxford Bank — bank, MI, oxfordbank.com; 1 routing number (cross-checked)
Ozark — credit union, MO; no routing number published yet
Ozark Bank — bank, MO, ozarkbank.com; 1 routing number (cross-checked)
Ozarks Federal Savings and Loan Association — bank, MO, ofsl.bank; no routing number published yet
Ozona Bank — bank, TX, ozona.bank; no routing number published yet

Routing data is sourced from official bank pages, FDIC and NCUA institution data, and public routing directories, current in this build as of August 2, 2026. Confirm routing or SWIFT details with the financial institution before sending money.