| Wales v Ireland Cardiff Arms Park, Cardiff Saturday, 25 March, 2023 |
Referee: Amber McLachlan (RA) |
| England v Scotland Kingston Park, Newcastle Saturday, 25 March, 2023 |
Referee: Aimee Barrett-Theron (SARU) Assistant Referee 1: Precious Pazani (ZIM) Assistant Referee 2: Adele Roberts (BEL) TMO: Olly Hodges (IRFU) |
| Italy v France Stadio Sergio Lanfranchi, Parma Sunday, 26 March, 2023 |
Referee: Maggie Cogger-Orr (NZR) Assistant Referee 1: Hollie Davidson (SRU) Assistant Referee 2: Katherine Ritchie (RFU) TMO: Ben Blain (SRU) |
| Ireland v France Musgrave Park, Cork Saturday, 1 April, 2023 |
Referee: Hollie Davidson (SRU) Assistant Referee 1: Sara Cox (RFU) Assistant Referee 2: Maria Heitor (PORT) TMO: Ben Whitehouse (WRU) |
| Scotland v Wales DAM Health Stadium, Edinburgh Saturday, 1 April, 2023 |
Referee: Maggie Cogger-Orr (NZR) Assistant Referee 1: Beatrice Benvenuti (FIR) Assistant Referee 2: Maria Pacifico (FIR) TMO: Leo Colgan (IRFU) |
| England v Italy Franklin's Gardens, Northampton Sunday, 2 April, 2023 |
Referee: Kat Roche (USA) Assistant Referee 1: Doriane Domenjo (FFR) Assistant Referee 2: Mary Pringle (SRU) TMO: Andrew McMenemy (SRU) |
| Wales v England Cardiff Arms Park, Cardiff Saturday, 15 April, 2023 |
Referee: Joy Neville (IRFU) Assistant Referee 1: Beatrice Benvenuti (FIR) Assistant Referee 2: Maria Pacifico (FIR) TMO: Olly Hodges (IRFU) |
| Italy v Ireland Stadio Sergio Lanfranchi, Parma Saturday, 15 April, 2023 |
Referee: Aurélie Groizeleau (FFR) Assistant Referee 1: Maria Latos (GER) Assistant Referee 2: Mary Pringle (SRU) TMO: Ian Tempest (RFU) |
| France v Scotland Stade de la Rabine, Vannes Sunday, 16 April, 2023 |
Referee: Lauren Jenner (FIR) Assistant Referee 1: Clara Munarini (FIR) Assistant Referee 2: Katherine Ritchie (RFU) TMO: Leo Colgan (IRFU) |
| Ireland v England Musgrave Park, Cork Saturday, 22 April, 2023 |
Referee: Lauren Jenner (FIR) Assistant Referee 1: Beatrice Benvenuti (FIR) Assistant Referee 2: Maria Pacifico (FIR) TMO: Andrew McMenemy (SRU) |
| Scotland v Italy DAM Health Stadium, Edinburgh Saturday, 22 April, 2023 |
Referee: Aurélie Groizeleau (FFR) Assistant Referee 1: Joy Neville (IRFU) Assistant Referee 2: Adele Roberts (BEL) TMO: Ian Tempest (IRFU) |
| France v Wales Stade des Alpes, Grenoble Sunday, 23 April, 2023 |
Referee: Clara Munarini (FIR) Assistant Referee 1: Katherine Ritchie (RFU) Assistant Referee 2: Mary Pringle (SRU) TMO: Matteo Liperini (FIR) |
| England v France Twickenham Stadium, London Saturday, 29 April, 2023 |
Referee: Aimee Barrett-Theron (SARU) Assistant Referee 1: Lauren Jenner (FIR) Assistant Referee 2: Maria Heitor (PORT) TMO: Ben Whitehouse (WRU) |
| Italy v Wales Stadio Sergio Lanfranchi, Parma Saturday, 29 April, 2023 |
Referee: Joy Neville (IRFU) Assistant Referee 1: Aurélie Groizeleau (FFR) Assistant Referee 2: Mary Pringle (SRU) TMO: Ben Blain (SRU) |
| Scotland v Ireland DAM Health Stadium, Edinburgh Saturday, 29 April, 2023 |
Referee: Sara Cox (RFU) Assistant Referee 1: Clara Munarini (FIR) Assistant Referee 2: Katherine Ritchie (RFU) TMO: Matteo Liperini (FIR) |