Ferkens Gränd (Swedish: Alley of Ferken) is an alley in Gamla stan, the old town of Stockholm, Sweden, connecting Skeppsbron to Österlånggatan.
It forms a parallel street to Drakens gränd, Lilla Hoparegränd, Pelikansgränd, and Gaffelgränd.
It was called Farken or Ferken, a name derived from the German word Farch or Ferkel meaning 'pig', and it probably had a sign displaying a pig.
A Leuisa i Farken ("Louise in the Fark") mentioned in 1602, was married to a Michill Wossin, who in June 1605 was allowed to run the tavern by King Charles IX.
The establishment was however declared unfit in 1687 and the building demolished a few years later.