The purpose of this study was to determine the effectiveness of manual therapy in patients with whiplash-associated injuries. Forty-five patients complaining of neck pain and reduced range of neck movement secondary to whiplash-associated injury were included in the study. Functional examinations were carried out to investigate the effectiveness of mobilization techniques associated with stabilization exercises. The range of neck motion improved significantly after treatment and the mean of pain intensity measured by VAS was 8/10 before treatment and 3/10 after treatment (p < 0.05). Stabilization and mobilization techniques for treatment of neck problems secondary to whiplash are therefore recommended.