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