  We investigate the shadow cast by a regular black hole in
scalar-tensor-vector mOdified gravity theory. This black hole differs from a
Schwarzschild-Kerr black hole by the dimensionless parameter $\beta$. The size
of the shadow depends on this parameter. Increasing the value of the parameter
$\beta$ shrinks the shadow. A critical value of the parameter $\beta$ is found
to be $\beta_{\rm crit}=0.40263$. The shadow for the horizonless dark compact
object has been analysed for the static, spherically symmetric case and
compared with M87* and Sgr A* data. Shadow observables have been determined in
the context of the regular black hole and used for obtaining the energy
emission rate. The peak of the energy emission rate shifts to lower frequency
for the increasing value of the parameter $\beta$.
