ˈɑːʃtɹə lˈuːkə ɪz ɐ vˈɪlɪdʒ ænd ɐ mjuːnˈɪsɪpˈælᵻɾi loʊkˈeɪɾᵻd ɪn ɹᵻpˈʌblɪkə sɹˈʌpskɑː, ɐn ˈɛntᵻɾi ʌv bˈɑːsniə ænd hˈɜːzɪɡˌɑːvɪnə.
Oštra Luka () is a village and a municipality located in Republika Srpska, an entity of Bosnia and Herzegovina.