Acquired immune deficiency syndrome (AIDS) is a global epidemic which is caused byrnthe virus called human immunodeficiency virus (HIV). It affects the immune system of thernbody of human beings and destroying the lives and livelihood of many people around thernworld. The main objective of the study was to determine the prevalence of HIV and levelrnof awareness in four different districts of Dembecha Woreda, West Gojjam Zone, AmhararnRegion, Ethiopia. A retrospective study design was conducted from September to June,rn2017. Purposive sampling technique was used to collect data from four health centersrnand simple random technique from informants of the people in these districts. Primaryrndata were collected by using structured questionnaire and secondary data were collectedrnby review of records at health centers. Data obtained were analyzed by using statisticalrnpackaging for social science (SPSS) version 16.0 software.rnResults obtained through frequency and percentage described that sex, marital status,rnage and awareness had significant on prevalence and level of awareness on HIV/AIDS.rnAccording to the secondary data obtained from health centers HIV positive females werern59.4% and males were 40.6%. So, females were more vulnerable than males. Majority ofrn(77.5%) that lives with HIV virus were the productive age (15-49age) group in bothrnsexes. The analyzed data indicated that HIV positivity is high among divorced and singlernindividuals.rnMajority of the respondents (93.6%) had an idea on HIV/AIDS that it is not curable whilern(5.4%) had believed that it is a punishment given from supernatural power. A largernnumber of respondents (46.8%) were agreed that a person who has HIV virus in his /herrnblood should keep secret from others. Three hundred seventy eight (93.6%) of thernrespondents said that unsafe sexual contact is the main transmission method of HIV virusrnfrom infected person to healthy person. So, still there have been misconceptions and lackrnof knowledge among the community on HIV/AIDS prevention and control mechanisms.rnFinally it was concluded that sex, age, marital status, and awareness were morernimportant variables for the prevalence and level of awareness on HIV/AIDS.rnKeywords: HIV/AIDS, Prevalence, Dembecha, Woreda, awarenes