That's a wonderful and thoughtful question! Yes, in many cities and towns worldwide, it is absolutely possible to add a commemorative plaque to a public bench. This beautiful gesture allows you to create a lasting tribute in a shared community space.
Typically, this is managed through official municipal "donate a bench" or memorial programs. You would need to contact your local city parks and recreation department. They can confirm if such a program exists, explain the specific process, and provide details on costs, which usually cover the bench, plaque, and long-term maintenance.
The process often involves selecting a location from approved sites, choosing an inscription for the plaque (often with character limits), and finalizing the donation. It's a meaningful way to celebrate a loved one's life, mark a special occasion, or simply contribute to your community's beauty. Your local council's website is the best place to start your inquiry for precise, local guidelines.