- GtkGrid — Pack widgets in a rows and columns
- GtkAlignment — A widget which controls the alignment and size of its child
- GtkAspectFrame — A frame that constrains its child to a particular aspect ratio
- GtkBox — A container box
- GtkHBox — A horizontal container box
- GtkVBox — A vertical container box
- GtkButtonBox — A container for arranging buttons
- GtkHButtonBox — A container for arranging buttons horizontally
- GtkVButtonBox — A container for arranging buttons vertically
- GtkFixed — A container which allows you to position widgets at fixed coordinates
- GtkPaned — A widget with two adjustable panes
- GtkHPaned — A container with two panes arranged horizontally
- GtkVPaned — A container with two panes arranged vertically
- GtkLayout — Infinite scrollable area containing child widgets and/or custom drawing
- GtkNotebook — A tabbed notebook container
- GtkTable — Pack widgets in regular patterns
- GtkExpander — A container which can hide its child
- GtkOverlay — A container which overlays widgets on top of each other
- GtkOrientable — An interface for flippable widgets
