The General Medical Council has struck off paediatrician Professor Sir Roy Meadow after his "misleading" evidence in the Sally Clark case.
The GMC announced on Friday that Sir Roy had been found guilty of serious professional misconduct.
Sir Roy had stood by his evidence, but admitted his use of statistics at Mrs Clark's 1999 trial was "insensitive".
Mrs Clark was convicted of murdering her two sons, but she was exonerated after an appeal in 2003.
The GMC said Sir Roy's conduct had been "fundamentally unacceptable".