The incident happened in Grimsbury on Wednesday (October 28) on the footpath running along Winchester Close and Beaulieu Close in Banbury.
Two masked men used knives to threaten their victims and stole an electric scooter. It happened at 9.30pm in the evening.
Police investigating the robbery have asked for help from anyone who may have witnessed anything.
Anyone with information should phone 101 quoting 43200348421.