  Various families of octonion number sequences (such as Fibonacci octonion,
Pell octonion and Jacobsthal octonion) have been established by a number of
authors in many different ways. In addition, formulas and identities involving
these number sequences have been presented. In this paper, we aim at
establishing new classes of octonion numbers associated with the third order
Jacobsthal and third order Jacobsthal-Lucas numbers. We introduce the third
order Jacobsthal octonions and the third order Jacobsthal-Lucas octonions and
give some of their properties. We derive the relations between third order
Jacobsthal octonions and third order Jacobsthal-Lucas octonions.
