  Jet schemes and arc spaces received quite a lot of attention by researchers
after their introduction, due to J. Nash, and established their importance as
an object of study in M. Kontsevich's motivic integration theory. Several
results point out that jet schemes carry a rich amount of geometrical
information about the original object they stem from, whereas, from an
algebraic point of view, little is know about them. In this paper we study some
algebraic properties of jet schemes ideals of pfaffian varieties and we
determine under which conditions the corresponding jet scheme varieties are
irreducible.
