Online Reservations


Contact Ohio Northern University

Connect with Campus Administrators, Campus Security, and More

When you stay at The Inn at ONU, you have prime access to campus offerings. Use the information below to contact Ohio Northern University and connect with ONU faculty, campus security, administrators and more. We look forward to welcoming you to the Ohio Northern University campus.

Ohio Northern University

525 South Main Street
Ada OH 45810
Phone: (419) 772-2000

Ohio Northern University Office of Alumni Affairs

Alumni House

115 West Lima Avenue
Ada, OH 45810
Phone: (419) 772-2727
Toll-Free: (866) ONU-ALUM

Getty College of Arts & Sciences

Dukes Memorial 207
525 South Main Street
Ada, OH 45810
Phone: (419) 772-3566
Fax: (419) 772-2622

James F. Dicke College of Business Administration

Dicke Hall 119
525 South Main Street
Ada, OH 45810
Phone: (419) 772-2070

T.J. Smull College of Engineering

Biggs Engineering Building
525 South Main Street
Ada, OH 45810
Phone: (419) 772-2371

Rudolph H. Raabe College of Pharmacy

Robertson-Evans Pharmacy 132
525 South Main Street
Ada, OH 45810
Phone: (419) 772-2275

Law Admissions Office

Ohio Northern University College of Law
Tilton Hall of Law, Room #119
525 South Main Street
Ada, OH 45810
Phone: (419) 772-2211
Toll-free: (877) 452-9668
Fax: (419) 772-3042