This paper discusses the behaviour and design of polypropylene fibre reinforced concrete-stainless steel composite columns through experimental investigation. The composite columns were pin-ended subjected to axial and eccentric loads, with eccentricities up to 0.2 of the outer diameter (D) of the stainless steel tubes. The cold-rolled stainless steel tubes had yield and ultimate stresses of 324 and 651 MPa, respectively, that are equivalent to EN 1.4547 European austenitic stainless steel grades. The stainless steel tubes were filled with plain and polypropylene FR concrete having a nominal cube strength of 40 MPa. The stainless steel tubes were relatively slender having a diameter-to-plate thickness ratio of 50 that are classified as Class 3 of European stainless steel circular tubular sections. The composite columns had different lengths varied from 3D of short columns to 12D of long columns. The column ultimate loads, load-axial shortening relationships, load-strain relationships, load-mid-height lateral deflection relationships and failure modes of the concrete-filled stainless steel circular tubular columns were predicted from the tests. The study has shown that FR concrete-filled stainless steel tubular columns offer a considerable increase in column ductility compared with plain concrete-filled tubular columns. The test ultimate loads were compared with the design ultimate loads calculated using the Eurocode 4 for composite columns. Generally, it has been shown that the EC4 accurately predicted the ultimate loads of axially loaded concrete-filled stainless steel circular tubular columns, but were quite conservative for predicting the ultimate loads of the eccentrically loaded columns. It has also been shown that the conservatism of the EC4 predictions is increased as the eccentricity is increased. Based on the test results a modification was proposed to improve the EC4 design guides.