What does PK mean in football?

PK is a place kicker in football. The kicker who takes field goals and extra points.

What a place kicker looks like

41 place kickers are on NFL rosters right now, and the median one is 6' 0" and 195 lb.

On rosters
41
Median height
6' 0"
Median weight
195 lb
Median age
28

The extra point has been snapped from the 15-yard line since 2015 — a 33-yard kick — which turned a formality into a play that misses a few times a season.

The rest of the NFL roster