This study aimed to evaluated seven bread wheat genotypes and their 21 F2 hybrids derived from a half-diallel mating design to estimate mean performance, general and specific combining ability, heterosis, and some genetic parameters. The parental genotypes (SK 95, Side 14, Side 12, SK 94, Giemiza 9, Giemiza 7, and Al-Fayadh) and their hybrids were grown at the Agricultural Research Station, University of Kirkuk, using a randomized complete block design with three replications. Analysis of variance revealed significant differences among parents for most traits, except days to flowering (129.67–131.67 days). Side 14 genotype was surpassed in flag leaf area (70.79 cm2), whereas SK 94 showed higher mean for number of grains per spike (83.73) and grain yield per plant (31.54 g). Significant variation was also observed among F2 hybrids for all traits, with several hybrids surpassing the better parent; as the hybrid SK 95 x Side 12 produced the highest number of grains per spike (95.73), while Side 14 x Side 12 achieved the highest grain yield per plant (37.85 g). Heterosis results showed that Side 14 x Side 12 genotype surpassed by greatest heterotic effects for grain yield, number of spikes per plant, and grains per spike, whereas SK 95 x Side 14 consistently excelled in thousand-grain weight, spikes per plant, and grain yield. Genetic parameter estimates showed that genetic variance exceeded environmental variance, with high broad-sense heritability but low narrow-sense heritability and expected genetic advance, emphasizing the importance of selection in advanced generations to achieve stable genetic improvement.