  We study gravito-magnetic effects in the Palatini formalism of f(R) gravity.
On using the Kerr-de Sitter metric, which is a solution of f(R) field
equations, we calculate the impact of f(R) gravity on the gravito-magnetic
precession of an orbiting gyroscope. We show that, even though an $f(R)$
contribution is present in principle, its magnitude is negligibly small and far
to be detectable in the present (like GP-B) and foreseeable space missions or
observational tests around the Earth.
