Help for Heroes says there has been an increase in the number of armed forces veterans and families seeking help regarding mental health issues.
The charity said the number of people taking up its 'Hidden Wounds' services has almost doubled since 2015, and they have seen a particular spike in interest since Prince Harry, alongside the Duke and Duchess of Cambridge, launched their 'Heads Together' campaign last month.
Dr Vanessa Moulton, from Help for Heroes, said:
"The statistics show that campaigns like 'Heads Together', and support from high-profile individuals, can make a significant difference to people's lives."
Last month, Harry openly discussed his problems coping with his mother's death, and said he spent nearly 20 years ''not thinking'' about it and eventually got help after two years of ''total chaos''.
He hoped speaking about his experiences would encourage others to talk about their mental health.
Help for Heroes statistics show that an average of 67 veterans and family members are contacting their 'Hidden Wounds' team every month, compared to an average of 32 per month in 2015 and 41 per month in 2016.