Gocek

Etymology
Of the 20,000 most common surnames in Poland, only 28 end in cek. The Polish name of Gocek may owe its suffix to the proximity of those sharing the name to the Czech border.

Proper noun

 * 1) ; the 11,355th most common surname in Poland  and 132,206th most common name recorded by the USA's 2010 census.

Declension
Masculine surname:

The feminine surname is indeclinable.