The address position is a key factor in golf, influencing overall performance and accuracy, and is often considered a main indicator of a successful swing. This study aimed to compare differences when using One-Length (OL) and Normal Length (NL) irons among skilled and less-skilled golfers during address position. Ten golfers (five skilled, five less skilled) each completed 20 swings using four different club setups (5NL, 5OL, 6NL, 6OL). A three-dimensional (3D) motion analysis system, with 8 infrared cameras operated at 240 Hz framerate were used to record the kinematic of address position in different conditions of iron clubs. A mixed-model ANOVA revealed significant differences in stance width, elbow flexion, and wrist positioning between skilled and less-skilled golfers (p < 0.05). Skilled golfers consistently had a wider stance, particularly with the 5NL club. Less-skilled golfers showed less lead elbow flexion, while skilled golfers had less trail wrist flexion across all conditions (p < 0.05). Both groups maintained consistent lead wrist flexion, regardless of the club used. The values are consistent across all club conditions for both groups. No significant differences were found in the stance-to-ball position across any of the clubs between the groups. These findings highlight the importance of addressing specific elements in the address position to improve golf performance, especially in differentiating between skill levels.