  We show that it is possible to formulate string theory as a "Galileon string
theory". The galileon field $\chi$ enters in the definition of the integration
measure in the action. Following the methods of the modified measure string
theory, we find that the final equations are again those of Polyakov. Moreover,
the string tension appears again as an additional dynamical degree of freedom.
At the same time the theory satisfies all requirements of the galileon higher
derivative theory at the action level while the equations of motion are still
of the second order. A galileon symmetry is displayed explicitly in the
conformal string worldsheet frame. Also we define the galileon gauge
transformations. Generalizations to branes with other modified measures are
discussed.
