In a joint statement with his wife, ex-first lady Laura Bush, the former US leader urged Myanmar to free student leader Phyoe Phyoe Aung, who is a part of a forum run by the Bush Institute.
"We are deeply concerned about the recent arrests of peaceful demonstrators in Burma by local authorities," Bush said, describing Phyoe Phyoe Aung as a "passionate advocate for education" in the Southeast Asian nation.
"Education is vital to the political, economic, and social well-being of every nation and people," Bush said.
"We hope that those arrested will soon be released."
Myanmar authorities detained some 127 demonstrators - including students and monks - in a frenzied crackdown on a protest in the central town of Letpadan on March 10, drawing condemnation from the opposition and Western nations.
Scores remain behind bars facing unknown charges and without access to their families, although authorities released a handful of students on Thursday.