Wacław "Wacek" Kisielewski (12 February 1943 – 12 July 1986) was a Polish pianist. He was the son of Polish politician Stefan Kisielewski, and one half of the pianist duo Marek i Wacek (Marek and Wacek) with Marek Tomaszewski. He made arrangements of classical and modern music, and played concerts in many countries worldwide. Waclaw died in a car accident in Wyszków and was buried in the Powązki Cemetery in Warsaw on 17 July 1986. The funeral mass in the Church of Saint Cross Piaseczno was attended by a huge crowd. The representatives of EMI and Yamaha were present, among others.