The sanction comes after the 30-year-old was found guilty of using "abusive and/or insulting words" towards McClean during the Sky Bet Championship clash between the two clubs last March, which Wigan won 2-1.
Broadfoot, a former Rangers player, and Republic of Ireland international McClean clashed when the Millers defender accused his opponent of diving.
As well as the lengthy ban, he has been fined £7,500 and ordered to attend an education programme.
An FA statement read: "Following an Independent Regulatory Commission hearing, Rotherham United’s Kirk Broadfoot will serve an immediate 10-match suspension after a misconduct charge against him was found proven.
"The charge was that during a league fixture between Rotherham and Wigan
Athletic on March 14 2015 Broadfoot used abusive and/or insulting words towards
a member of the opposition, in breach of FA Rule E3(1).
"It was further alleged
that the breach was an “Aggravated Breach” as defined by Rule E3(2). Broadfoot
was also fined £7,500 and ordered to complete an education programme."
The ban rules
Broadfoot out of Rotherham's games up to the trip to Birmingham on September
26, unless the Millers progress in the Capital One Cup, and is a record
for verbal abuse in English football, beating the eight games handed to Luis
Suarez when he was found guilty of racially abusing Patrice Evra in December
2011.
