Kwallon kafa ta Amurka (wasan ƙwallon ƙafa na Amurka galibi ana kiransa ƙwallon ƙafa), wanda kuma aka sani da ƙwallon ƙafa ta Amurka, wani nau'in wasan rugby ne, wasa mafi shahara a Amurka, kuma na farko daga cikin manyan wasanni huɗu na ƙwararru a Arewacin Amurka. Kwallon ƙafa ta Amurka ta samo asali ne daga ƙwallon ƙafa ta Ingila. Bayan an shigar da ita Amurka, an canza ƙa'idodi, kuma an yi amfani da layukan kai hari da na tsaro don yin zagaye. Babu wani ƙuntatawa na motsi, kuma ana iya jefa ƙwallon gaba. Manufar wannan motsi ita ce tura ƙwallon zuwa yankin ƙarshen abokin hamayya don cin kwallo. Hanyoyin cin kwallaye sune kamar haka: Daban-daban, gami da riƙe ƙwallon a kan tushe, jefa ta ga abokin wasa a bayan tushe, ko buga ƙwallon kai tsaye a ƙasa ta tsakiyar sandunan raga guda biyu. Ƙungiyar da ta fi maki a ƙarshen wasan ta yi nasara. Kwallon ƙafa ta Amurka wasa ne mai matuƙar fuskantar juna. Saboda sau da yawa akwai karo mai ƙarfi na jiki tare da 'yan wasan da ke adawa da juna a wasan, 'yan wasa suna buƙatar sanya kwalkwali da kayan kariya.