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We present long-slit spectra of three irregular galaxies from which wedeterminethe stellar kinematics in two of the galaxies (NGC 1156 and NGC 4449)and ionized-gas kinematics in all three (including NGC 2366). We compare thisto the optical morphology and to the HI kinematics of the galaxies. In theionized gas, we see a linear velocity gradient in all three galaxies. In NGC1156 we also detect a weak linear velocity gradient in the stars of (5+/-1/sini) km/s/kpc to a radius of 1.6 kpc. The stars and gas are rotating about thesame axis, but this is different from the major axis of the stellar bar whichdominates the optical light of the galaxy. In NGC 4449 we do not detectorganized rotation of the stars and place an upper limit of (3/sin i) km/s/kpcto a radius of 1.2 kpc. For NGC 4449, which has signs of a past interactionwith another galaxy, we develop a model to fit the observed kinematics of thestars and gas. In this model the stellar component is in a rotating disk seennearly face-on while the gas is in a tilted disk with orbits whose planesprecess in the gravitational potential. This model reproduces the apparentcounter-rotation of the inner gas of the galaxy. The peculiar orbits of the gasare presumed due to acquisition of gas in the past interaction.Comment: To be published in ApJ, November 20, 200

The Stellar and Gas Kinematics of Several Irregular Galaxies