People from across Dudley turned out to take part in Russells Hall Hospital's Santa Dash which aims to raise £100,000.
They money forms part of the health trust's Children's Emergency Department appeal, providing a less clinical environment to treat more vulnerable patients.
The event saw staff and members of the public run two laps around the hospital – each dressed as Father Christmas.
Charity fundraising manager Karen Phillips said: “We want to provide a safe room for patients arriving in a crisis or those with mental health needs.
"We’ll be paying special attention to the children’s waiting area and consulting room to make sure they are equipped with sensory items for distraction, and will be providing specialist ‘superhero’ type books to explain complex conditions in a simple way.
"We are really pleased that we brought a smile to patients and staff as our Santa’s ran past."
People who took part in the Santa dash were asked to raise a minimum of £30 in sponsorship.
The run took place on Thursday at 4pm.