An estimated 2 334 662 people are living with HIV in Europe and Central Asia, 1 944 695 of whom (83%; range 65–100%) have been diagnosed. This is approximately one in six (17%) people living with HIV in Europe and Central Asia being unaware of their status. In the 26 EU/EEA countries with reported data, 91% (706 541; range 77−98%) of the estimated 778 237 people living with HIV had been diagnosed. This is equivalent to nearly one in 10 people living with HIV (9%) in the EU/EEA having an undiagnosed HIV infection.