Osteraker may refer to:

• Österåker Municipality
• Österåker Prison
• På Österåker, a Johnny Cash album recorded at Österåker Prison

• Ahsan Ullah
• Ahsanullah Engineering College
• Ahsan Watts
• Ahsas TV
• AHS: Asylum
• AHS Asylum
• A. H. Savage Landor
• AH Scorpii
• AHS Coven
• Ahse
• Ahsee Tuala
• Ahseop Son
• AHS episodes
• A. H. Seymour
• AHS Freak Show
• AHSG (gene)
• Ahsham
• Ahsham Ahmad
• Ahsham-e Ahmad
• Ahsham-e Ahmad, Deyr
• Ahsham-e Ahmad (disambiguation)
• Ahsham-e Ahmad, Ganaveh
• Ahsham-e Ahmadi
• Ahsham-e Ali Ahmad Kheyari
• Ahsham-e Ali Ahmad Khiari