The head of the Syrian Observatory for Human Rights monitoring group, Rami Abdel Rahman, said he compiled the toll from regime sources.
"Since March 2011, at least 60,000 people lost their lives to torture or to horrible conditions, notably the lack of medication or food, in regime detention centres," Abdel Rahman told AFP.
He said the highest number of deaths had been recorded in the infamous Saydnaya prison as well as detention centres run by Syria's notorious air force intelligence and state security forces.
Rights groups have accused Syria's government of systematically using torture and inhumane practices in its detention centres.
A UN probe in February accused the Syrian government of a policy of "extermination" in its jails.
The Britain-based Observatory says it has compiled a list of 14,456 names -- including 110 children -- who have died in regime prisons.
According to Abdel Rahman, government forces have arrested a total of 500,000 people since Syria's conflict erupted in 2011.
While some have been released and others died, the whereabouts of thousands of detainees remain unknown.
In early 2014, a regime defector calling himself "Caesar" smuggled out of Syria some 55,000 photographs depicting the tortured and abused bodies of around 11,000 people who had reportedly died in Syrian jails during the first two years of the conflict.
Earlier this month, the UN special envoy to Syria Staffan de Mistura named Eva Svoboda to oversee progress on the issue of detainees.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
