Sorghum [Sorghum bicolor var Saccharatum, Moench (L.)] has become a crucial global food crop. This study aimed to assess the performance of five sweet sorghum varieties under varying nitrogen fertilizer levels and irrigation frequencies, focusing on growth traits, yields, and technological characteristics. Field experiments were conducted in clay loam soil under a flood irrigation system at El-Sabahia Agricultural Research Station, Alexandria Governorate, Egypt, during the summer seasons of 2021 and 2022. A randomized complete block design (RCBD) with a split-split plot arrangement with three replicates was used. The main plots were designated for irrigation treatments: full irrigation with seven waterings (control), six waterings (skipping the 6^th), and five waterings (skipping the 6^th and 7^th). Subplots were assigned three nitrogen fertilizer levels (60, 90, and 120 kg N/fed), and sub-sub plots were used to randomly distribute five sweet sorghum varieties (Ahron, G.R Coba, Sugar Drip, Tracy, and MN 4490).The results showed that irrigation frequency, nitrogen levels, and sorghum variety significantly interacted with stalk dimensions, leaf area, yield, and quality traits during both seasons. The AMMI and GGE biplot analyses indicated that the Ahron variety was the highest-performing genotype for strip stalk yield when fertilized with 90 kg N/fed and irrigated six times (IR2).These findings highlight the importance of optimizing irrigation and nitrogen management alongside variety selection to enhance sweet sorghum productivity and quality.