PNG ICO ICNS MORE
Desktop apps
Pixel
Splashyfish
cancel, Minus
DarkGray
16x16
PNG MORE
Minus, stop, cancel
RoyalBlue
44x44
Mixed
Led Icons
cancel
Firebrick
UI
Smooth
User Interface Icons
LightBlue
80x80
Computer & hardware
Crystal Project
cross, cancel, button
DarkRed
256x256
Photography & graphic design
3D
Dark Glass
Exit, delete, remove
SlateGray
128x128
Futurosoft
cancel, button
Black
32x32
Network & communications
Oxygen
Dialog, cancel
48x48
Signs & symbols
34aL volume 3.2 SE
Back, Arrow, refresh
DodgerBlue
24x24
Shopping & e-commerce
Cartoon
Glossy eCommerce Icons Pack
Maroon
Circular
denied, Access, cancel
Function icons
Close, deactivation, cancel
Fugue Icons
reject, Del, delete
KDE Crystal Diamond
button, cancel
22x22
Nuvola
reject, x, delete
Nuove
warning, cancel, stop
realistiK Reloaded
x, cancel, Error
Crystal Clear
delete, cross, none
Tomato
forbidden, cancel
Red
Silk