Ofishin Kididdiga wata hukuma ce ta gwamnati a Amurka da ke da alhakin tattarawa, tattarawa, da kuma nazarin bayanai game da jama'ar Amurka, tattalin arziki, da al'umma. Hukumar tana gudanar da kidayar jama'a a duk shekara 10 don tattara bayanan al'umma game da yawan jama'a sannan kuma tana gudanar da bincike da nazari don bin diddigin yanayin tattalin arziki da zamantakewa. Ofishin Kididdiga wani bangare ne na Ma'aikatar Kasuwancin Amurka.