The Park is managed by the Wellington Park Management Trust, established through the Wellington Park Act 1993. The role of the Trust is to provide a regional approach to planning and management, and to prepare and co-ordinate the implementation of planning strategies and procedures for the Park.

The constitution and membership of the Trust is specified in the Act.

The Trust aims to provide sustainable opportunities for recreation, tourism and education, whilst conserving the environmental, cultural and water catchment values of the Park. The Trust works closely with the on-ground management agencies carrying out maintenance activities within Wellington Park.

The Trust office is based at the Hobart City Council. The Trust employs a full-time Manager and several part-time project based officers.