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Background: The post-stroke persistent headache syndrome is poorly characterized in the literature and recognized in clinical practice. The objective of this study is to describe the clinical and epidemiological profile of patients with persistent post-stroke headache and its pattern. Design and setting: Cross-sectional study at a reference stroke outpatient clinic from Federal University of Bahia. Methods: Patients were actively approached during the usual consultation. Results: From a total of 52 stroke patients, 11 (21.2%) were diagnosed with persistent post-stroke headache, 19 (36.5%) with acute post-stroke headache and 22 (42.3%) without headache. Systemic arterial hypertension was more frequent in the group without headache (95.5%) than in the group with persistent headache (63.6%). On the other hand, the second group presented a greater proportion of sedentary lifestyle (90.9% vs 54.5%) and smoking (45.5% vs 27.3%) than the first group. In patients with persistent headache, the median frequency of pain in the last 3 months was 40.5 days (IIQ 14.25 - 90.0) and the most frequent locations were strictly unilateral (45.5%) and holocranial (36 , 4%), with no individual reporting an alternating unilateral pattern. Conclusions: Corroborating the results of previous studies, our data demonstrated a relevant prevalence of persistent post-stroke headache, and it is possible that previously hypertensive patients are more protected for the development of persistent headache than individuals without hypertension.