Hawan jini (HTN ko HT), wanda kuma aka sani da cutar hawan jini (HBP), yanayin likita ne na dogon lokaci wanda hawan jini a cikin arteries ke ci gaba da karuwa. Hawan jini yawanci baya haifar da alamu. Hawan jini na dogon lokaci, duk da haka, babban haɗari ne ga cututtukan jijiyoyin jini, bugun jini, gazawar zuciya, fibrillation, cututtukan jijiya na gefe, hasarar hangen nesa, cututtukan koda na yau da kullun, da hauka. An rarraba hawan jini a matsayin hauhawar jini na farko (mahimmanci) ko hauhawar jini na biyu. Kusan kashi 90-95% na shari'o'in sune na farko, wanda aka ayyana a matsayin hawan jini saboda rashin takamaiman salon rayuwa da abubuwan halitta. Abubuwan salon rayuwa waɗanda ke ƙara haɗarin sun haɗa da gishiri mai yawa a cikin abinci, yawan nauyin jiki, shan taba, da amfani da barasa. Sauran 5-10% na lokuta an kasafta su azaman hawan jini na biyu, wanda aka ayyana a matsayin hawan jini saboda wani dalili da za a iya gane shi, kamar ciwon koda na kullum, kunkuntar jijiyoyin koda, cutar endocrine, ko amfani da kwayoyin hana haihuwa.