The Queen says the pandemic has shown the importance of the news industry as it provides "trusted, reliable sources of information" in a dramatically changing world.
She highlighted the "vital" public service role it has played, particularly given the proliferation of social media.
The sovereign also described the news industry's efforts to support communities as "invaluable", thanks to campaigns, fundraising efforts and volunteering drives.
In a message to mark the launch of Journalism Matters Week, run by the News Media Association (NMA) trade body, she writes: "The Covid-19 pandemic has once again demonstrated what an important public service the established news media provides, both nationally and regionally.