Search for Exotic Particles and Extra Dimensions at the Tevatron

We report on searches for exotic particles, such as leptoquarks, massive stable particles, and new heavy gauge bosons (Z') in $p\bar{p}$ collisions at sqrt(s) = 1.96 {\rm TeV} using data collected by the D\O\ and CDF experiments during 2002-2004 at the Fermilab Tevatron. The data is also studied for evidence of extra dimensions. Results of several searches will be presented.