This report contains the results of the 2013 HIV Sero-Sentinel Surveillance and the Rapid Behavioral surveys. In its first part, the report describes the results of the 2013 HIV Sero-Sentinel Surveillance (SSS) conducted by the Ministry of Health (MOH) and in its second part, it provides the results of the 2013 Rapid Behavioral survey (RBS) conducted by the National AIDS Commission (NAC). The 2013 Sero-Sentinel Surveillance was conducted among direct female sex workers (DFSW), people who inject drugs (PWID), men who have sex with men (MSM) and waria in 22 cities while the 2013 Rapid Behavioral Survey included MSM, DFSW, and PWID in 8 cities. The Sero-Sentinel Surveillance aimed to determine the magnitude of the HIV epidemic and syphilis among key populations and the Rapid Behavioral Survey studied the prevalence of associated risk factors. The results of these surveys will serve to set targets for the new national HIV/AIDS national strategic plan and for planning and/or modifying existing programs to prevent HIV in Indonesia. DFSW and waria participants were sampled using a two stages probability proportional to size method while MSM and PWID were sampled using the respondent driven sampling method (RDS). The target sample sizes were 250 for each key population per site for the 2013 SSS and 240 per site for the 2013 Rapid Behavioral Survey. A total of 6603 participants were recruited for the 2013 SSS. Of those, 3685 were DFSW, 985 were waria, 978 were PWID, and 985 were MSM. The total number of participants in the 2013 Rapid Behavioral Survey was 2829. Of these, 1120 were DFSW, 989 were PWID, and 720 were MSM.