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Purpose: The purpose of this study was to assess the correlations between scapular posture and pressure pain thresholds (PPTs) in the neck muscle region according to sex. Methods: The study included 100 student participants (50 men and 50 women). To quantitatively assess their scapular angle, the angle was measured using the EasyAngle goniometer. PPTs of the suboccipital, supraspinal, and trapezius muscles were measured using a digital algometer. Results: There was a significantly negative correlation between scapular anterior tilting and the PPT of the suboccipital muscle (p<0.05), and between scapular internal rotation and the PPT of the trapezius muscle (p<0.05) in men. A negative correlation was observed between scapular anterior tilting and the PPT of the suboccipital muscle (p<0.05), and between the scapular internal rotation and PPT of the supraspinal and trapezius muscles in women (p<0.05). Conclusion: We identified important associations between scapular posture and the PPT in the neck muscles. These findings are expected to be useful in predicting the degree of muscle pain in the neck based on scapular posture.