I see so many different titles for the profession. Is there a standard and how did yours come to be? Did you inherit it and does it adequately describe your role?

Some of the more common titles I see are:

Volunteer Coordinator
Volunteer Manager
Director of Volunteer Services

Mine is Director of Volunteers but that is simply because that is the title chain of command in the company.

Professional Credentials: CAVS

Hello,
My title is Volunteer Involvement Coordinator. My title was just recently changed from Voluteer Coordinator. The reason for the change is that my job is more to encourage people to volunteer.
Cindi Johnson
Volunteer Involvement Coordinator
People of Hope
A Lutheran Church in Mission

I started out with the title of "Volunteer Coordinator."
People always wanted to know if I was a volunteer.
I also felt the title indicated I only focused on coordinating the volunteers themselves,
not on the services fulfilled by their efforts.

My department is Volunteer Services.
When my position grew and changed to a manager position,
I chose the title of "Manager of Volunteer Services."

When I hired another coordinator, I changed that position to
"Volunteer Services Coordinator."

It seemed to correct any misunderstanding regarding our roles. It also indicates that we manage/coordinate the overall functions of the department.

Professional Credentials: Manager of Volunteer Services

I too started as Volunteer Coordinator, and recently re-named the title to be Director of Volunteer Programs, for similar reasons as mentioned above.

Professional Credentials: Director of Volunteer Programs at the San Diego Aircraft Carrier Museum