  Given two points $p$ and $q$ in the plane and a nonnegative number $r$, the
Cassini oval is the set of points $x$ that satisfy $d(x, p) d(x, q) = r^2$. In
this paper, we study this set using the taxicab metric. We find that these sets
have characteristics that are qualitatively similar to their Euclidean
counterparts while also reflecting the underlying taxicab structure. We provide
a geometric description of these sets and provide a characterization in terms
of intersections and unions of a restricted family of such sets analogous to
that found recently for taxicab Apollonian sets.
