More than 8,000 prisoners sentenced to death by Pakistani courts over the past 20 years still languish in jail, the Asian Human Rights Commission has said.
The vast majority are appealing against their sentences - those condemned include foreigners, females and young and old people.
Most prisoners awaiting the death sentence are incarcerated in the jails of Punjab province.
The report says that some prefer to remain in jail as they feel safer.
"This is because of family enmity and the possibility of being assassinated," the report written by Malik Ayub Sumbal says.