The final of the BBC One dog grooming competition saw Kelly beat fellow contestants Georgia and Lakhi.
Kelly groomed a miniature poodle to clinch victory.
She said: “Winning Pooch Perfect feels surreal and so incredible.
“To be able to inspire others in the industry and show that your dreams can become a reality feels amazing.
“I put my heart and soul into every challenge and I was so happy that I stepped out of my comfort zone and I still managed to showcase my years of grooming skills and knowledge within the industry.”
A total of 16 groomers competed in the programme across eight weeks.
Host Sheridan Smith said: “I am so pleased for Kelly. She has been a joy to watch over the past few weeks, and truly deserved to win.
“Plus she is now the proud owner of the Golden Stanley trophy!
“It’s been a pleasure being part of Pooch Perfect. I’ve loved every second and I can’t wait to see what Kelly and the rest of our amazing dog groomers do next.”