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This study aimed to describe the self-perceived walking limitations of those with multiple sclerosis (MS) using the Swedish translation of the 12-item MS Walking Scale [MSWS-12 (S)], and to investigate it for concurrent validity and internal consistency. Eighty-one persons, recruited from five centres in Sweden, were tested using the Four Square Step Test (FSST), the Timed Up and Go cognitive (TUGcog) and the Berg Balance Scale (BBS) in randomized order, besides filling in the MSWS-12 (S). Perceived limitations were reported in 89-96% of the sample, i.e. performance of activities related to standing or walking, decreased speed and distance, and qualitative aspects; and self-perception regarding the ability to run being most extremely affected. Correlations between the MSWS-12 (S) and the objective tests were low, as were correlations between items in the MSWS-12 (S) and the BBS or time taken to complete the TUGcog or the FSST. The internal consistency was acceptable for nine of the 12 items (0.7-0.84). The majority of the sample experienced limitations in several aspects of their walking ability. Concurrent validity was not established between the MSWS-12 (S) and the other tests. There may be a discrepancy in self- perception of disability and objective measures. The use of subjective, as well as objective measures is recommended.