This paper presents searches for large extra dimensions and leptoquarks in p\overline {p} collisions from Run 1 at the Tevatron. Large extra dimensions are searched for in real graviton production with a monojet or monophoton and in virtual graviton exchange processes with electron or photon pairs. Results from leptoquark searches are presented for three generations of leptoquarks. No evidence of signal is found in any searches for large extra dimensions or leptoquarks and limits are placed. Prospectives for these searches in the Tevatron's Run 2 are discussed and initial Run 2 data is presented.

PACS numbers: 14.80.--j