Madauwari RNA (circRNA) wani nau'in RNA ne mara coding, wanda kwanan nan aka same shi yana taka muhimmiyar rawa a cikin hanyoyin sadarwar da ke da hannu wajen haɓakawa, juriyar muhalli, da sauransu. Ya bambanta da kwayoyin RNA na layi, misali mRNA, lncRNA, 3′ da 5′ An haɗa ƙarshen circRNA tare don samar da tsarin madauwari, wanda ya cece su daga narkewar exonuclease kuma sun fi kwanciyar hankali fiye da yawancin RNA na layi.An gano CircRNA yana da ayyuka daban-daban wajen daidaita maganganun kwayoyin halitta.CircRNA na iya yin aiki azaman ceRNA, wanda ke ɗaure miRNA gasa, wanda aka sani da soso miRNA.Dandalin bincike na circRNA yana ba da ikon tsarin circRNA da nazarin magana, hasashen manufa da nazarin haɗin gwiwa tare da sauran nau'ikan kwayoyin RNA.
