  Deformed multi-$\Lambda$ hypernuclei are studied within a relativistic
mean-field model. In this paper, we take some $N=Z$ "hyper isotope" chains,
i.e., $^{8+n}_{\ \ n\Lambda}{\rm Be}$, $^{20+n}_{\ \ \ n\Lambda}{\rm Ne}$, and
$^{28+n}_{\ \ \ n\Lambda}{\rm Si}$ systems where $n = 2$, $4$ for Be, and $n =
2$, $8$ for Ne and Si. A sign of two-$^6_{2\Lambda}$He cluster structure is
observed in the two-body correlation in $^{12}_{4\Lambda}$Be. In the Ne hyper
isotopes, the deformation is slightly reduced by addition of $\Lambda$ hyperons
whereas it is significantly reduced or even disappears in the Si hyper
isotopes.
