A liquid ejecting apparatus includes a liquid ejecting head and a mounting unit. The liquid ejecting head is able to eject liquid. A plurality of liquid containers containing the liquid to be supplied to the liquid ejecting head mounted so as to overlap in an up-down direction. The mounting unit includes a separator and an electrical member. The separator separates, in the up-down direction, a space where the plurality of liquid containers are mounted. The electrical member allows electricity to flow therethrough. The separator has a through portion that penetrates through the separator in the up-down direction. The through portion is positioned such that, when seen in the up-down direction, an edge portion of the through portion does not overlap with the electrical member positioned below the through portion.