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Let $ \{P_{n}\}_{n\geq 0} $ be the sequence of Pell numbers defined by $P_0=0 $, $ P_1 =1$ and $ P_{n+2}= 2P_{n+1} +P_n$ for all $ n\geq 0 $ and let $\{Q_{n}\}_{n\geq 0} $ be its companion sequence, the Pell-Lucas numbers definedby $ Q_0=Q_1 =2$ and $ Q_{n+2}= 2Q_{n+1} +Q_n$ for all $ n\geq 0 $ . In thispaper, we find all Pell and Pell-Lucas numbers which can be written asdifference of two repdigits. It is shown that the largest Pell and Pell-Lucasnumbers which can be written as difference of two repdigits are  $$P_6=70= 77-7 \quad\quad \hbox{and} \quad\quad Q_7 = 478=555-77.$$

Pell and Pell-Lucas numbers as difference of two repdigits