82-year-old Graham Gregory was found guilty of three counts of indecent assault at two trials at Douglas Courthouse earlier this month.
The former vicar of St Ninian's Church committed the offences between 1975 and 1990 whilst working at the church.
His victims were aged between eight and 13 at the time.
He's been jailed for four years and four months and placed on the Sexual Offences Register indefinitely.
Detective Constable Alison Thompson says: "The victims have shown immense courage by reporting these offences to the police and throughout the investigation and court process and I would like to personally thank them for that.
"I would also like to thank the Victim Support Service and the Prosecution Team for the support shown to the victims and the witnesses throughout the investigation and subsequent General Gaol trials.
"Officers from the Public Protection Unit have also worked closely with the Diocese of Sodor and Man who assisted the Police with this investigation throughout.
"Being the victim of any form of sexual offence is extremely traumatic and distressing and it takes strength and courage to report such matters.
"Specialist detectives from the Public Protection Team at Police Headquarters are available to speak with anyone who wishes to report any sexual abuse and those officers will be able to offer specialist support, guidance and advice and support those victims throughout any police investigation."
