Pearson replaces deputy executive director Bill Gaine, who is retiring in June after 33 years with the MIAA.

“Richard has been an active member of our two associations for many years and is well informed on the mission, responsibilities and operations of both organizations,’’ MIAA executive director Richard Neal said in a release.

“The fact that his peers elected him to serve as MSSAA President this year is testimony to the respect he has among the educational community as a leader.’’

Pearson has been principal at Medway since August 2004, supervising the opening of a new high school. Previously, he was an assistant principal at Foxborough High.

“I’m truly excited to have this opportunity to support both organizations and support principals and students in this situation,’’ Pearson said.