The Collaborative International Dictionary of English v.0.48:

Stage fright \Stage fright\
   Nervousness felt before an audience.
   [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

stage fright
    n 1: fear that affects a person about to face an audience

Moby Thesaurus II by Grady Ward, 1.0:

46 Moby Thesaurus words for "stage fright":
   afraidness, agitation, apprehensiveness, attack of nerves,
   bashfulness, buck fever, case of nerves, confusion, coyness,
   demureness, demurity, diffidence, embarrassment,
   excessive irritability, fear, fearfulness, fidgetiness, fidgets,
   jumpiness, morbid excitability, mousiness, nerves, nervosity,
   nervous stomach, nervousness, panic, panickiness,
   self-consciousness, shamefacedness, shamefastness, shrinkingness,
   shyness, skittishness, spell of nerves, stagefright, stammering,
   startlishness, state of nerves, tic, timidity, timidness,
   timorousness, trepidation, twitching, uneasiness, vellication