This randomized controlled trial investigated the effects of cervical stabilization exercises on head posture, pain, functional status, and voicing efficiency in patients with nonspecific chronic neck pain. Following a six-week exercise program, cervical stabilization exercises resulted in significantly greater improvements in pain intensity, functional disability, craniocervical angle, and maximum phonation time compared with traditional exercises. Both exercise interventions led to significant reductions in pain and improvements in cervical posture; however, no significant changes were observed in acoustic voice parameters. Overall, cervical stabilization exercises demonstrated superior benefits in postural alignment, pain reduction, and functional outcomes.