S.T.A.L.K.E.R.: Call of Pripyat No Hud

Hide/Show Hud

Method #1

1. Go to Main Menu > Options > Game. 
2. There is an option to Show/Hide the HUD display. 

Method #2

Open console with Tilde "~" and type:

hud_draw off

hud_draw on

Screenshot

S.T.A.L.K.E.R.: Call of Pripyat No Hud