In this paper, 2 extragradient methods for solving differential variational inequality (DVI) problems are presented, and the convergence conditions are derived. It is shown that the presented extragradient methods have weaker convergence conditions in comparison with the basic fixed-point algorithm for solving DVIs. Then the linear complementarity systems, as an important and practical special case of DVIs, are considered, and the convergence conditions of the presented extragradient methods are adapted for them. In addition, an upper bound for the Lipschitz constant of linear complementarity systems is introduced. This upper bound can be used for adjusting the parameters of the extragradient methods, to accelerate the convergence speed.Finally, 4 illustrative examples are considered to support the theoretical results. KEYWORDS differential variational inequality, extragradient method, fixed point problem, linear complementarity system, optimal control problem, variational inequalities Math Meth Appl Sci. 2017;40:7201-7217.wileyonlinelibrary.com/journal/mma