Lawrence will take charge of the first Test in Durban on June 20, with Berdos refereeing the second Test in Pretoria on June 27 and Dickinson the third Test in Johannesburg on July 4.
The trio will form a neutral Test panel that will also include specialist assistant referee Vinny Munro (New Zealand) for the first Lions Tests on South African soil for 12 years.
The appointments were made after a meeting of the IRB Referee Selection Committee, chaired by Welsh Rugby Union Chairman David Pickering, in Dublin over the weekend.
"We met with the Lions and South Africa team management last month and all were in favour of the appointment of neutral match officials for the Test series," said IRB referee manager Paddy O'Brien.
"Bryce, Christophe and Stuart are all highly experienced members of the IRB's high performance referee panel with nearly 80 internationals between them. They are relishing the opportunity to take their place in Lions history."
The IRB has also announced a strong match official line up for the seven provincial tour matches. The panel is merit-based and features IRB high performance referee panel members.
South African Marius Jonker will get the series underway when the Lions play a Highveld XV in Rustenburg on May 30.
Craig Joubert (South Africa), Wayne Barnes (England), Jonathan Kaplan (South Africa), Mark Lawrence (South Africa) and Nigel Owens (Wales) will also take charge of provincial matches, while Rugby World Cup 2007 Final referee Alain Rolland will referee the match between the Lions and Emerging Springboks in Cape Town on June 23.
The assistant referees and television match officials for the provincial matches will be South African officials from within the IRB Panel and these will be confirmed in due course.
The official confirmed appointments to date are as follows.
May 30 Highveld XV Ref: Marius Jonker
June 3 Golden Lions Ref: Craig Joubert Assistant 1: Wayne Barnes
June 6 Cheetahs Ref: Wayne Barnes
June 10 Sharks Ref: Jonathan Kaplan Assistant 1: Wayne Barnes
June 13 Western Province Ref: Mark Lawrence
June 16 Coastal XV Ref: Nigel Owens Assistant 1: Alain Rolland
June 20 South Africa Ref: Bryce Lawrence Assistants: Stuart Dickinson, Vinny Munro TMO: Christophe Berdos
June 23 Emerging Springboks Ref: Alain Rolland Assistant 1: Nigel Owens
June 27 South Africa Ref: Christophe Berdos Assistants: Bryce Lawrence, Vinny Munro TMO: Stuart Dickinson
July 4 South Africa Ref: Stuart Dickinson Assistants: Christophe Berdos, Vinny Munro TMO: Bryce Lawrence