  We have determined the composite luminosity function (LF) for galaxies in 60
clusters from the 2dF Galaxy Redshift Survey. The LF spans the range
$-22.5<M_{b_{\rm J}}<-15$, and is well-fitted by a Schechter function with
${M_{b_{\rm J}}}^{*}=-20.07\pm0.07$ and $\alpha=-1.28\pm0.03$ ($H_0$=100 km
s$^{-1}$ Mpc$^{-1}$, $\Omega_M$=0.3, $\Omega_\Lambda$=0.7). It differs
significantly from the field LF of \cite{mad02}, having a characteristic
magnitude that is approximately 0.3 mag brighter and a faint-end slope that is
approximately 0.1 steeper. There is no evidence for variations in the LF across
a wide range of cluster properties. However the LF of early-type galaxies in
clusters is both brighter and steeper than its field counterpart. The
differences between the field and cluster LFs for the various spectral types
can be qualitatively explained by the suppression of star formation in the
dense cluster environment, together with mergers to produce the brightest
early-type galaxies.
