1. CDC communication plan template

As with most templates offered by the CDC, this one too is highly detailed with clear instructions on how to use it. It includes a section for stakeholder analysis, version control, and a communication matrix. Although not the best looking templates around, it is detailed enough for most projects.
Download: CDC.gov (Direct file, Word)
2. Project communication plan template

This template from the MS Office library is meant for marketing teams but can be used in any agency. It includes several sections to streamline communication, including provisions for a risk management plan, change management, and team structure.
Download: Office.com (Word)
3. NASA communication plan template

This is one of the most in-depth communication plan templates online. Besides the usual sections, it includes a “stakeholder interest/power grid” to map the importance vs. interest of each stakeholder. It also includes a section to list your communication principles to ensure consistency across all messages.
Download: NASA.gov (Direct file, Word)
4. Project communication management plan template

Created by Marc Arnecke, PMP, this highly customizable project management template can be used in nearly any project. It includes detailed plans for managing meetings, analyzing stakeholders, and developing communication principles.
Download: Magt.biz (Word/PDF)
Source : https://www.workamajig.com/blog/project-management-templates