His experience in the luxury travel sector includes previous sales roles with Silversea Cruises and Von Essen Hotels.
Knight has joined the new river cruise company this month and will lead the sales efforts in the UK and Ireland, with a focus on developing a trade luxury distribution channel.
Stuart Perl, managing director of Riverside Luxury Cruises, said: "We are delighted to have someone of Jon’s calibre and experience joining us and demonstrating our commitment to our trade-focussed sales strategy.
"Developing and building strong relationships with travel agents and the wider industry will be a huge part of our success."
Knight added: "I am delighted to join the Riverside Luxury Cruises team as we embark on bringing a new dimension to luxury river cruising in the UK and Irish markets."
The move comes following the line’s recent acquisition of the remaining four vessels of the Crystal Cruises’ river fleet.
