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Türkiye · Silivri · İstanbul

Marmara Prison

High-securityLow
Verified
Aging · 5mo ago
Sources last reviewed on

Data is aggregated from public sources and may be incomplete or out of date. Always verify with primary sources before acting on any figure. See data sources.

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Photograph of Marmara Prison

Gallery

From Wikimedia Commons (CC-BY-SA where not otherwise stated).

  • OtokarSultanPrisonBus (1).jpg

    Photo by CeeGee via Wikimedia Commons (CC BY-SA 4.0)

  • OtokarSultanPrisonBus (2).jpg

    Photo by CeeGee via Wikimedia Commons (CC BY-SA 4.0)

  • Protest for the arrested academics (2).jpg

    Photo by Hilmi Hacaloğlu via Wikimedia Commons (Public domain)

  • SilivriPrison01.JPG

    Photo by CeeGee via Wikimedia Commons (CC BY-SA 4.0)

  • SilivriPrison02.JPG

    Photo by CeeGee via Wikimedia Commons (CC BY-SA 4.0)

  • SilivriPrison03.JPG

    Photo by CeeGee via Wikimedia Commons (CC BY-SA 4.0)

Background

Marmara Prison (Turkish: Marmara Cezaevi) or officially Marmara Penitentiaries Campus (Turkish: Marmara Ceza İnfaz Kurumları Kampüsü) formerly Silivri Prison is a high-security state correctional institution complex in the Silivri district of Istanbul Province in Turkey. Established in 2008, it is the country's most modern and Europe's largest penal facility. As of June 5, 2008, a total of 96,760 defendants and convicts were detained in Turkey. 11,148 of them were held in ten correctional facilities of closed and open type within Istanbul Province. Following the opening of Silivri Prison, which has a capacity of nearly 11,000 inmates, the number of inmates in all Istanbul's prisons reached 15,910.

Source: Wikipedia article lead, CC-BY-SA.

Capacity

—

Current population

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Occupancy

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Year opened

2008

Operational

Figures from official sources · verified 29 May 2026 · methodology

Facility profile

Population held

Mixed/unknown

Opened

2008

Region

Silivri

Security level

High-security

Death-row facility

No

Conditions

No conditions summary available yet.

Visiting

No visiting information available.

Mailing

No mailing information available.

Practical info

Contact the operator's website for inmate-specific procedures.

Known issues

No major issues documented in our database.

Notable inmates

  • Ümit Özdağ
    Ümit Özdağ
    1961 · university teacher

    Ümit Özdağ (Turkish: [yˈmit ˈøzdɑː]; born 3 March 1961) is a Turkish politician who returned to his position as the current leader of the Victory Party after being released from prison on 17 June 2025.

  • Ayşe Barim
    ? · film producer
  • İlker Canikligil
    1972 · film director
  • Osman Kavala
    Osman Kavala
    1957 · businessperson

    Mehmet Osman Kavala (born 2 October 1957) is a Turkish economist, businessman, philanthropist, and political activist.

  • Bekir Kaya
    1977 · politician

    Bekir Kaya (born 1977 in Ağrı) is a Kurdish politician of the Democratic Regions Party (DBP) and a former Mayor of Van.

  • Doğu Perinçek
    Doğu Perinçek
    1942 · politician

    Doğu Perinçek (Turkish pronunciation: [doːu peɾinˈtʃek]; born 17 June 1942) is a Turkish politician, doctor of law and former communist revolutionary who has been chairman of the left-wing nationalist Patriotic Party since 2015.

  • Barış Pehlivan
    Barış Pehlivan
    1983 · journalist

    Barış Pehlivan (IPA: [baɾɯʃ pehlivan]; born July 10, 1983) is a Turkish journalist and author.

  • Ali Yasak
    1956 · criminal

    Ali Yasak (born 1956), better known as Drej Ali (literally: Ali, the tall) is one of Turkey's most renowned criminals.

  • Tuncay Özkan
    Tuncay Özkan
    1966 · journalist

    Ahmet Tuncay Özkan (born 14 August 1966) is a Turkish journalist, writer and politician.

Showing 9 of 11. Source: Wikidata + Wikipedia.

Conditions Risk Score

Derived signal — not a judgement. How it's calculated

—
Insufficient data
We don't have enough public data on this facility to score it. Have something to add? Send us a correction.

Related facilities

All in Türkiye →

Same country, matched on type + security level where possible.

Data completeness

46%

How many of our profile fields are populated. We surface this so families and researchers know the limits.

Sources

Cite this page

Under CC-BY-4.0. Include the URL and access date; the site is a living reference and entries can change.

APA
World Prisons. (2026). Marmara Prison. Retrieved October 15, 2026, from https://worldprisons.com/prisons/marmara-prison
Chicago
"Marmara Prison." World Prisons. Accessed October 15, 2026. https://worldprisons.com/prisons/marmara-prison.
BibTeX
@misc{worldprisons-marmara-prison,
  author = {{World Prisons}},
  title = {Marmara Prison},
  year = {2026},
  url = {https://worldprisons.com/prisons/marmara-prison},
  urldate = {2026-10-15}
}