PNG ICO ICNS MORE
Circular
cancel, denied, Close
Firebrick
16x16
Function
stop, no, Close
48x48
Human-O2
Process, stop, cancel
128x128
VISTAICO TOOLBAR
symbol, no, stop
256x256
Onebit I
Del, warning, Error
PNG ICO MORE
Ginux
Close, stop, no
64x64
Base Software
Close, no, stop
Red CandyBar
no, cancel, stop
Must Have
Office
no, stop, cancel
PNG ICNS MORE
I Like Buttons 3A
Close, Ball, stop
512x512
Signs & symbols
Glyph
Buttons
delete, Block, Clear
PNG ICO ICNS SVG MORE
UI
Free basic
cancel, Not, stop
Clear, cancel, decline
Photography & graphic design
3D
32x32 Free Design Icons
Close, cancel, Exit
32x32
Gaming & gambling
Photorealistic
48x48 Free Object Icons
no, Closed, stop
cancel, play, sign
Network & communications
Pixel
16x16 Free Application Icons
prohibition, danger, reject
Mixed
Smooth
48px web iconset
cancel, Badge
Snowish
gtk, cancel
approve, cancel, delete
Business & finance
Pretty Office
cancel
Gnome icons
cancel, Error, gtk
PNG MORE
C9d
forbidden, cancel, delete
24x24