The 35-year-old was arrested around 3:40 a.m. just outside of Atlanta, Georgia and charged with driving under the influence.
The former Super Bowl MVP was booked into the Dekalb County Jail and later released on $1,300 bond. A Steelers spokesman did not immediately respond to a message, and it was not immediately clear if Ward had an attorney.
Since being drafted in the third round out of Georgia in 1998, the 35-year-old Ward has been a four-time Pro Bowl selection and won two Super Bowls.
In May, Ward became the second professional football player to win the "/*Dancing With The Stars*/" crown, dancing with professional partner Kym Johnson.
The Associated Press contributed to this story