A multiple sump fuel sampler with catch can that includes an upper fuel sampling and testing reservoir with integral lower catch can reservoir arranged such that a self-closing valve is placed between the upper sampling reservoir and the lower catch can. This self-closing valve can be easily opened and closed by a user to allow fuel in the upper sampling reservoir to drain down into the lower catch can reservoir. Embodiments of the invention include a means of spill-free dumping of fuel accumulated in the lower catch can reservoir via an integral no-drip pour spout.