Ostrawa may refer to:

• Ostrawa, Lower Silesian Voivodeship, a village in south-west Poland
• The Polish name for the Czech city of Ostrava

• LB23
• LB-30
• LB-30B Liberator
• LB-30 Liberator
• LB-426
• LB-5
• LB-6
• LB-7
• LB 97.4
• L. Babai
• L B Abbott
• LB Abbott
• LBA (disambiguation)
• L. bakeri
• L. bakeri (disambiguation)
• L-balance
• L-balance theorem
• L. Balaraman
• L. B. Allison
• LB (american football)
• L. Bancel LaFarge
• LBAR
• L. Basavaraju
• L'bastardi
• L Battery, Royal Horse Artillery