The PKO Piekary Semi-marathon is a night half marathon held in Piekary Śląskie, southern Poland, starting at 9:00 p.m. It is organized as a local running festival, featuring the main 21.1 km race alongside the Nocna zaDyszka 10 km run and a 5 km Leśna Eko Piątka the day prior.
The event caters to both experienced runners and beginners, offering various distances rather than requiring participation in the half marathon. The City of Piekary Śląskie directs the organization, with support from local sports groups and the municipal sports center, including MKS Olimpia Piekary Śląskie and Lecymy Durś.