The 37-year-old announced the news on Facebook, explaining, "After a lot of thought and prayer, I've decided to focus my energies on some other exciting endeavors, including adding author to my resume."
She continued, “I have absolutely loved dancing for all of you for all these years and feel blessed to have been given a platform to put my passion for dance, choreography and creativity on display. ‘DWTS’ has been a huge part of my life for the last 10 years and I will always have a special place in my heart for it. I am thrilled that now you will be seeing more of me in new arenas in the days and weeks to come.
Smirnoff added, “My first book, ‘We're Just Not That Into You - Dating Disasters from the Trenches’ was released today, and I look forward to hearing from you as you read it! I love all of you so very much and couldn't feel more grateful for your support in all that I do! Xo Karina.”
It was previously announced that Cheryl Burke, Derek Hough and Len Goodman will also be leaving the ABC show.
The new season begins March 16.