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Using kinematic maps from the Sloan Digital Sky Survey (SDSS) Mapping NearbyGalaxies at Apache Point Observatory (MaNGA) survey, we reveal that themajority of low-mass quenched galaxies exhibit coherent rotation in theirstellar kinematics. Our sample includes all 39 quenched low-mass galaxiesobserved in the first year of MaNGA. The galaxies are selected with $M_{r} >-19.1$, stellar masses $10^{9}$ M$_{\odot} < M_{\star} < 5\times10^{9}$M$_{\odot}$, EW$_{H\alpha} <2$ \AA, and all have red colours $(u-r)>1.9$. Theylie on the size-magnitude and $\sigma$-luminosity relations for previouslystudied dwarf galaxies. Just six ($15\pm5.7$ per cent) are found to haverotation speeds $v_{e,rot} < 15$ km s$^{-1}$ at $\sim1$ $R_{e}$, and may bedominated by pressure support at all radii. Two galaxies in our sample havekinematically distinct cores in their stellar component, likely the result ofaccretion. Six contain ionised gas despite not hosting ongoing star formation,and this gas is typically kinematically misaligned from their stellarcomponent. This is the first large-scale Integral Field Unit (IFU) study of lowmass galaxies selected without bias against low-density environments.Nevertheless, we find the majority of these galaxies are within $\sim1.5$ Mpcof a bright neighbour ($M_{K} < -23$; or M$_{\star} > 5\times10^{10}$M$_{\odot}$), supporting the hypothesis that galaxy-galaxy or galaxy-groupinteractions quench star formation in low-mass galaxies. The local brightgalaxy density for our sample is $\rho_{proj} = 8.2\pm2.0$ Mpc$^{-2}$, comparedto $\rho_{proj} = 2.1\pm0.4$ Mpc$^{-2}$ for a star forming comparison sample,confirming that the quenched low mass galaxies are preferentially found inhigher density environments.

SDSS-IV MaNGA: Faint quenched galaxies I- Sample selection and evidence for environmental quenching