The Chairperson of the Oireachtas Foreign Affairs Committee, Pat Breen, is to visit Ibrahim Halawa.
The Dublin teenager has been imprisoned in Cairo for almost two years after he was arrested during protests in the Egyptian capital in August 2013.
The committee had requested that the entire group be allowed visit the 19-year-old, but Egyptian authorities have instead given permission to Pat Breen as Chair, and an advisor.
Ibrahim's case is due to be heard in court this weekend, and Deputy Breen says the group has serious concerns about his welfare.