Gierczyn [ˈɡʲɛrt͡ʂɨn] is a village in the administrative district of Gmina Mirsk, within Lwówek Śląski County, Lower Silesian Voivodeship, in south-western Poland, close to the Czech border.

It lies approximately 6 kilometres (4 mi) south of Mirsk, 26 km (16 mi) south-west of Lwówek Śląski, and 118 km (73 mi) west of the regional capital Wrocław.

• Andrzej Biegalski, Polish boxer

• Birecki T., 1959, "Złoże cyny w Przecznicy (Dolny Śląsk)." [Lode Of Tin Ore In Przecznica (Lower Silesia)]; in: Zeszyty Naukowe AGH, No. 22, Geologia vol.3, pp. 35–53, Kraków (in Polish)

• Gierczyn in Wratislaviae Amici (in Polish)