Image based on Petr Exner's Vexilologický Lexikon prapory obcí ČR (1995)
- Rudná u Prahy, Praha-západ district, Central Bohemian region - adopted
23 Nov 1995.
Jarig Bakker, 7 Aug 2001
Rudná u Prahy - town near Prague (some 20 km west of Prague centre)
in Stredocesky region. Flag has two horizontal stripes, red over black:
in left top corner (in red) is yellow post-trumpet.
Jiri Martinek, 28 Apr 2000