In this paper, (p, q)-analogues of r-Whitney numbers of the first and second kinds are defined using horizontal generating functions. Several fundamental properties such as orthogonality and inverse relations, an explicit formula, and a kind of exponential generating function are obtained. Moreover, a (p, q)-analogue of r-Whitney-Lah numbers is also defined in terms of a horizontal generating function, where necessary properties are obtained. These properties help develop a (p, q)-analogue of the r-Dowling numbers, particularly, a (p, q)-analogue of a Qi-type formula.