| Fixture | Officials |
|
Wales
v Scotland Principality Stadium, Cardiff, Wales
3 Feb 2018
2.15pm | Referee  Pascal Gauzere (France) Assistant 1  Romain Poite (France) Assistant 2  Matthew Carley (England) TMO  David Grashoff (England) |
|
France
v Ireland Stade de France, Paris, France
3 Feb 2018
4.45pm | Referee  Nigel Owens (Wales) Assistant 1  Wayne Barnes (England) Assistant 2  Paul Williams (New Zealand) TMO  Rowan Kitt (England) |
|
Italy
v England Stadio Olimpico, Rome, Italy
4 Feb 2018
4.00pm | Referee  Mathieu Raynal (France) Assistant 1  Jérôme Garcès (France) Assistant 2  () TMO  Glenn Newman (New Zealand) |
|
Ireland
v Italy Aviva Stadium, Dublin, Ireland
10 Feb 2018
2.15pm | Referee Romain Poite (France) Assistant 1 Pascal Gauzere (France) Assistant 2 Matthew Carley (England) TMO David Grashoff (England) |
|
England
v Wales Twickenham Stadium, England
10 Feb 2018
4.45pm | Referee Jérôme Garcès (France) Assistant 1  George Clancy (Ireland) Assistant 2 () TMO Glenn Newman (New Zealand) |
|
Scotland
v France BT Murrayfield, Edinburgh, Scotland
11 Feb 2018
3.00pm | Referee  John Lacey (Ireland) Assistant 1 Nigel Owens (Wales) Assistant 2 Paul Williams (New Zealand) TMO Rowan Kitt (England) |
|
France
v Italy Orange Vélodrome, Marseille, France
23 Feb 2018
9.00pm | Referee Wayne Barnes (England) Assistant 1 John Lacey (Ireland) Assistant 2  Luke Pearce (England) TMO David Grashoff (England) |
|
Ireland
v Wales Aviva Stadium, Dublin, Ireland
24 Feb 2018
2.15pm | Referee  Glen Jackson (New Zealand) Assistant 1 Pascal Gauzere (France) Assistant 2 Matthew Carley (England) TMO Rowan Kitt (England) |
|
Scotland
v England BT Murrayfield, Edinburgh, Scotland
24 Feb 2018
4.45pm | Referee Nigel Owens (Wales) Assistant 1 Jérôme Garcès (France) Assistant 2  Andrew Brace (Ireland) TMO  Simon McDowell (Ireland) |
|
Ireland
v Scotland Aviva Stadium, Dublin, Ireland
10 Mar 2018
2.15pm | Referee Wayne Barnes (England) Assistant 1  Ben O'Keeffe (New Zealand) Assistant 2 Luke Pearce (England) TMO  George Ayoub (Australia) |
|
France
v England Stade de France, Paris, France
10 Mar 2018
5.45pm | Referee  Jaco Peyper (South Africa) Assistant 1  Angus Gardner (Australia) Assistant 2  Marius van der Westhuizen (South Africa) TMO  Ben Skeen (New Zealand) |
|
Wales
v Italy Principality Stadium, Cardiff, Wales
11 Mar 2018
3.00pm | Referee Jérôme Garcès (France) Assistant 1 Pascal Gauzere (France) Assistant 2 Andrew Brace (Ireland) TMO  Marius Jonker (South Africa) |
|
Italy
v Scotland Stadio Olimpico, Rome, Italy
17 Mar 2018
1.30pm | Referee Pascal Gauzere (France) Assistant 1 Jérôme Garcès (France) Assistant 2 Andrew Brace (Ireland) TMO Marius Jonker (South Africa) |
|
England
v Ireland Twickenham Stadium, England
17 Mar 2018
2.45pm | Referee Angus Gardner (Australia) Assistant 1 Jaco Peyper (South Africa) Assistant 2 Marius van der Westhuizen (South Africa) TMO Ben Skeen (New Zealand) |
|
Wales
v France Principality Stadium, Cardiff, Wales
17 Mar 2018
5.00pm | Referee Ben O'Keeffe (New Zealand) Assistant 1 Wayne Barnes (England) Assistant 2 Luke Pearce (England) TMO George Ayoub (Australia) |
