Abstract: A disposable armrest cover, having a top wall section with a top wall with a forward edge, an aft edge, and first and second lateral edges. The top wall further has perforations disposed at a first predetermined distance from the forward edge without reaching the aft edge. A first sidewall section has a first sidewall having a first sidewall forward edge, a first sidewall aft edge, and a first sidewall bottom edge. A second sidewall section has a second sidewall having a second sidewall forward edge, a second sidewall aft edge, and a second sidewall bottom edge. A forward wall section has a forward wall having a bottom edge. A strap assembly secures onto a chair having at least one armrest. In a preferred embodiment, the perforations form an “X” configuration.