Title: Search for non-SM Light Higgs Boson in the $h \to \gamma \gamma$ Channel at D\O\ in Run II Author: The D\O Collaboration A search for non-SM light Higgs boson with an enhanced branching fraction into photons was performed using $\approx 190 \: {\rm pb}^{-1}$ of data collected by the D\O\ experiment in Run II of the Fermilab Tevatron. We set an upper 95\% CL limits on the diphoton branching fraction as a function of Higgs mass for Fermiophobic and Topcolor Higgs scenarios.