Wales v Ireland
Principality Stadium, Cardiff
Saturday, 4 February, 2023

Referee: Karl Dickson (RFU)
Assistant Referee 1: Angus Gardner (RA)
Assistant Referee 2: Luke Pearce (RFU)
TMO: Tom Foley (RFU)

England v Scotland
Twickenham Stadium, London
Saturday, 4 February, 2023
Referee: Paul Williams (NZR)
Assistant Referee 1: Ben O'Keeffe (NZR)
Assistant Referee 2: James Doleman (NZR)
TMO: Brendon Pickerill (NZR)
Italy v France
Stadio Olimpico, Rome
Sunday, 5 February, 2023
Referee: Matthew Carley (RFU)
Assistant Referee 1: Nic Berry (RA)
Assistant Referee 2: Jordan Way (RA)
TMO: Ben Whitehouse (WRU)

Ireland v France
Aviva Stadium, Dublin
Saturday, 11 February, 2023

Referee: Wayne Barnes (RFU)
Assistant Referee 1: Matthew Carley (RFU)
Assistant Referee 2: Jordan Way (RA)
TMO: Brendon Pickerill (NZR)
Scotland v Wales
BT Murrayfield, Edinburgh
Saturday, 11 February, 2023
Referee: Andrew Brace (IRFU)
Assistant Referee 1: Frank Murphy (IRFU)
Assistant Referee 2: Chris Busby (IRFU)
TMO: Brian MacNeice (IRFU)
England v Italy
Twickenham Stadium, London
Sunday, 12 February, 2023
Referee: James Doleman (NZR)
Assistant Referee 1: Mathieu Raynal (FFR)
Assistant Referee 2: Tual Trainini (FFR)
TMO: Eric Gauzins (FFR)
Italy v Ireland
Stadio Olimpico, Rome
Saturday, 25 February, 2023
Referee: Mike Adamson (SRU)
Assistant Referee 1: Wayne Barnes (RFU)
Assistant Referee 2: Craig Evans (WRU)
TMO: Marius Jonker (SARU)
Wales v England
Principality Stadium, Cardiff
Saturday, 25 February, 2023
Referee: Mathieu Raynal (FFR)
Assistant Referee 1: Andrew Brace (IRFU)
Assistant Referee 2: Pierre Brousset (FFR)
TMO: Brian MacNeice (IRFU)
France v Scotland
Stade de France, Paris
Sunday, 26 February, 2023
Referee: Nika Amashukeli (GRU)
Assistant Referee 1: Karl Dickson (RFU)
Assistant Referee 2: Andrea Piardi (FIR)
TMO: Ben Whitehouse (WRU)
Italy v Wales
Stadio Olimpico, Rome
Satuday, 11 March, 2023
Referee: Damon Murphy (RA)
Assistant Referee 1: Karl Dickson (RFU)
Assistant Referee 2: Chris Busby (IRFU)
TMO: Joy Neville (IRFU)
England v France
Twickenham Stadium, London
Saturday, 11 March, 2023
Referee: Ben O'Keeffe (NZR)
Assistant Referee 1: Jaco Peyper (SARU)
Assistant Referee 2: Andrea Piardi (FIR)
TMO: Brett Cronan (RA)
Scotland v Ireland
BT Murrayfield, Edinburgh
Sunday, 12 March, 2023
Referee: Luke Pearce (RFU)
Assistant Referee 1: Wayne Barnes (RFU)
Assistant Referee 2: Christophe Ridley (FFR)
TMO: Stuart Terheege (RFU)
Scotland v Italy
BT Murrayfield, Edinburgh
Saturday, 18 March, 2023
Referee: Angus Gardner (RA)
Assistant Referee 1: Matthew Carley (RFU)
Assistant Referee 2: Craig Evans (WRU)
TMO: Brett Cronan
France v Wales
Stade de France, Paris
Saturday, 18 March, 2023
Referee: Nic Berry (RA)
Assistant Referee 1: Andrew Brace (IRFU)
Assistant Referee 2: Christophe Ridley (FFR)
TMO: Joy Neville (IRFU)
Ireland v England
Aviva Stadium, Dublin
Saturday, 18 March, 2023
Referee: Jaco Peyper (SARU)
Assistant Referee 1: Ben O'Keeffe (NZR)
Assistant Referee 2: Pierre Brousset (FFR)
TMO: Marius Jonker (SARU)