  We analyze the single and pair production of excited neutrinos at the CLIC
through the processes $e^{+}e^{-}\rightarrow \nu^{*} \bar{\nu}$, $e^{+}e^{-}
\rightarrow e^{+}\gamma^{*} e^{-} \rightarrow e^{+} \nu^{*} W^{-}$, and
$e^{+}e^{-} \rightarrow e^{+}\gamma^{*} \gamma^{*} e^{-} \rightarrow e^{+}
\nu^{*} \bar{\nu}^{*} e^{-}$ ($\gamma^{*}$ is the Weizsacker-Williams photon).
We examine comprehensively the excited neutrino signal and corresponding
backgrounds to obtain limits on excited neutrino mass for various values of the
integrated luminosity and center-of-mass energy. We show that the obtained
bounds are more restricted than current experimental bounds.
