The 83-year-old's lawyer indicated he will plead not guilty to nine counts of indecent assault and four of making indecent images of a child.
Mr Harris was accompanied to Westminster Magistrates' Court, in London, by his wife Alwen.
At the brief hearing, he spoke only to confirm his name, his address in Bray, Berkshire, and his date of birth.
The case will next be heard at Southwark Crown Court on October 7.
Harris was released on bail under a number of conditions.