  We explicitly construct a supersymmetric $so(n)$ spin-Calogero model with an
arbitrary even number $\cal N$ of supersymmetries. It features
$\frac{1}{2}{\cal N}n(n{+}1)$ rather than ${\cal N}n$ fermionic coordinates and
a very simple structure of the supercharges and the Hamiltonian. The latter,
together with additional conserved currents, form an $osp({\cal N}|2)$
superalgebra. We provide a superspace description for the simplest case, namely
${\cal N}{=}2$ supersymmetry. The reduction to an $\cal N$-extended
supersymmetric goldfish model is also discussed.
