The present invention provides an organic nonlinear optical material including an organic compound having nonlinear optical activity dispersed in or bonded to a polymer binder, wherein the material contains a tertiary amine derivative represented by the following formula (1) as the organic compound having nonlinear optical activity, and an organic nonlinear optical element using the same. ##STR00001## In the formula, Z.sup.1 to Z.sup.3 are independently aromatic groups optionally having a substituent; L is a .pi. conjugated group optionally having a substituent; A is a .pi. conjugated electron-attractive group which includes a ring structure optionally having a substituent; m denotes 0 or 1; a .pi. conjugated system denoted by Z.sup.3-L.sub.m has, from one terminal thereof to the other terminal, five or more unsaturated bonds which form one conjugated system; and at least two of Z.sup.1 to Z.sup.3, L and A may be connected so as to form at least one ring structure.