Intensity-Duration-Frequency (IDF) relationship is essential for water resources planning and management. The present research aimed to collect data from different rain gauge stations, and derive IDF models for Erbil, Sualimani, Duhok, and Halabja Provinces, Kurdistan Region-Iraq. Stations with rainfall records for 15 years and more were considered in this study. Gumbel Distribution and Log Pearson Type-III (LPT-III) techniques were examined for IDF curves establishment. In this study total of 72 empirical rainfall intensity equations were derived for both the Gumbel and LPT-III distribution methods to estimate rainfall intensity from different rainfall durations with required return periods. Although the LPT-III method over-performed the Gamble method in a few stations, the Gambel method was found to be more stable and robust for all types of data with different skewness values. Therefore, the assumption that the LPT-III method is more accurate compared to other methods, for rainfall data with skewness ≤1.44, does not hold in this study.