She called them "brave" women who put themselves in danger on a daily basis.
Camilla, who was hosting an event for Women in Journalism, spoke of the dangers they face with the Taliban in control of the government.
"In 2020, there were 700 female journalists working in Kabul - today, there are fewer than 100", she told the gathering at a reception at Dumfries House in Ayrshire.
She spoke of how, with 600 fewer female voices, "the experiences of countless Afghans will remain untold".
Following the Taliban seizing control in Afghanistan, females presenters were removed from the country's TV news channels but some did later return to the screens.
The Duchess said that all journalists who "fight for truth and justice in the face of retribution deserve our thanks and admiration", but she urged everyone to support those in Afghanistan.
"Let’s do all we can to support, promote and, crucially, listen to the brave female journalists of Afghanistan, whose work puts them in danger every single day," she added.
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