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We study the shape and kinematics of simulated dwarf galaxy discs in theAPOSTLE suite of $\Lambda$CDM cosmological hydrodynamical simulations. We findthat a large fraction of these gas-rich, star-forming discs show weak bars intheir stellar component, despite being dark matter-dominated systems. The barpattern shape and orientation reflect the ellipticity of the dark matterpotential, and its rotation is locked to the slow figure rotation of thetriaxial dark halo. The bar-like nature of the potential induces non-circularmotions in the gas component, including strong bisymmetric flows that can bereadily seen as m=3 harmonic perturbations in the HI line-of-sight velocityfields. Similar bisymmetric flows are seen in many galaxies of the THINGS andLITTLE THINGS surveys, although on average their amplitudes are a factor of ~2weaker than in our simulated discs. Our results indicate that bar-like patternsmay arise even when baryons are not dominant, and that they are common enoughto warrant careful consideration when analyzing the gas kinematics of dwarfgalaxy discs.

Bars in dark matter-dominated dwarf galaxy discs