Introduction: Low back pain is a common musculoskeletal disorder, with numerous risk factors including provocative posture. Objective: To investigate the perception of physiotherapists on the best sitting posture and how important posture is for management low back pain. Methods: One hundred and forty questionnaires were sent to physiotherapists in spas, hospitals and outpatient departments across Slovenia. They selected their perceived best sitting posture from a sample of nine options. They were also asked to rate how important they thought spinal posture was in the management of chronic low back on a scale of 0 to10. Descriptive statistic was used for data analysis. Results: One hundred and twelve questionnaires completed from 10 male and 102 female physiotherapists (average age 39.6 years), with average 15.8 years of working experience were used for analysis. The majority of participants (87 %) selected two postures as the best sitting posture, one in 67 % and the other in 20 %. Spinal posture was very important in the management of chronic low back pain for 65 % of participant. Conclusions: It appears that while most physiotherapists picked one of the two postures, there is still considerable disagreement on what the best sitting posture is. Further research on the perceptions of physiotherapists what is good sitting posture, is indicated.