A huge number of events have already been lined up for 2026, with the showpiece being the Pride of Portsmouth Lion Trail Hunt which will see creatively coloured lions places around the city to form a free art trail from July 13 to September 13.
Here are just 23 of the events to put into your diary!
More information about Portsmouth100 and future events are also available on the Portsmouth100 website.

1. Icebreaker Festival - January 31
Portsmouth's premier unsigned music festival returns, with a stellar line up of local and fast-rising bands. The event will see more than 80 sets played across eight stages at the Wedgewood Rooms, Edge of the Wedge, Vaults, The Loft, Lord John Russell, The Atrium, One Eyed Dog and The Deco. Details at www.icebreakerfestival.com Photo by Tony Palmer (@shot_by_tony) | Tony Palmer (@shot_by_tony) Photo: Tony Palmer

2. Centenary Service - March 8
The annual civic service at Portsmouth cathedral will this year be a special Centenary Service. More detaisl to follow | The News Photo: Submitted

3. Pompey celebration - April 18
Portsmouth FC will mark the city's 100th anniversary at their home game at Fratton Park against Leicester | Graham Hunt/ProSportsImages

4. Portsmouth Comic Con - May 2 and 3
Portsmouth Comic Con is making a welcome return to the Guildhall on May 2 and 3. Filled with costumes, experiences, merchandise and a whole heap of fun it is one not to be missed! Details: portsmouthcomiccon.com Photo by Alex Shute Photo: Alex Shute