May said, "We can end the stigma that has forced too many to suffer in silence and prevent the tragedy of suicide taking too many lives".
A total of more than 4,500 self-inflicted deaths are recorded every year in England, and suicide remains the leading cause of death among men under the age of 45.
"We aren't looking after our health if we aren't looking after our mental health".
The new role will head up a ministerial taskforce, working with experts in suicide and self-harm prevention, charities, clinicians and those personally affected by suicide. "And we can give the mental wellbeing of our children the priority it so profoundly deserves", the prime minister later tweeted on her official Twitter account.
A meeting was also hosted by Health Secretary Matt Hancock and it was graced by the Duke and Duchess of Cambridge.
To combat what she called "the sad reality of modern life" that affects so many people, Theresa May also appointed a minister for loneliness earlier this year.
"The truth is that, for an awfully long time, mental health has simply not had the same level of support - both in terms of resources, but also in terms of how we as a society talk about it - compared to physical health, and we want to change that", he told BBC Radio 4's Today programme.
While the NHS has stated that 120,000 more people are getting specialist mental health treatment in 2018 compared to three years ago, it remains a significant challenge across the United Kingdom and within the construction industry, this complex issue remains particularly prominent according to Mates in Mind.
Mental health disorders have "dramatically risen" around the world in the last 25 years, according to Dr. Pattel of Harvard University, who presented his findings in The Lancet and described the global mental health situation as "extremely bleak".
While the UK's move was welcomed, critics blamed shortfalls affecting mental health services on the government's austerity drive.
One-quarter of young people who require mental health services are unable to get help from the N.H.S., the report found.