This study was conducted to determine water-yield relations of drip-irrigated maize that was grown in Central Anatolia Region of Turkey with a dominant arid and semi-arid climate. Four different irrigation treatments were applied to experimental plots in 7-day intervals. Irrigation treatments were laid out based on 7-day cumulative evaporation from class-A pan (I120 -120%, I100 -100%, I80 -80% and I60 -60% of pan evaporation). Applied irrigation water quantities varied between 431-676 mm in 2009 and between 453-726 mm in 2010. The greatest seasonal water consumption (821 mm) was observed in I120 treatment of 2010 and the lowest (590.1 mm) in I60 treatment of 2009. The greatest kernel yield per hectare (15773 kg ha -1 ) was obtained from I120 treatment of 2010 and the lowest (8986 kg ha -1 ) from I60 treatment of 2009. Water use efficiency (WUE) values varied between 1.45-1.99 kg m -3 and irrigation water use efficiency (IWUE) values varied between 1.84-2.39 kg m -3 . Yieldresponse factor (ky) of maize was calculated as 1.47 in 2009 and 1.36, in 2010. While I100 was recommended as the ideal irrigation program, I80 treatments could also be used to improve water use efficiencies in places where full irrigation is not possible.