  We investigate the "$T\bar{T}$" deformations of two-dimensional
supersymmetric quantum field theories. More precisely, we show that, by using
the conservation equations for the supercurrent multiplet, the $T\bar{T}$
deforming operator can be constructed as a supersymmetric descendant. Here we
focus on $\mathcal{N}=(1,0)$ and $\mathcal{N}=(1,1)$ supersymmetry. As an
example, we analyse in detail the $T\bar{T}$ deformation of a free
$\mathcal{N}=(1,0)$ supersymmetric action. We also argue that the link between
$T\bar{T}$ and string theory can be extended to superstrings: by analysing the
light-cone gauge fixing for superstrings in flat space, we show the
correspondence of the string action to the $T\bar{T}$ deformation of a free
theory of eight $\mathcal{N}=(1,1)$ scalar multiplets on the nose. We comment
on how these constructions relate to the geometrical interpretations of
$T\bar{T}$ deformations that have recently been discussed in the literature.
