The slash command
Before the shortcut table: the most important keyboard interaction in Notion isn't a traditional keyboard shortcut — it's the slash command.
Typing / at the beginning of any line (or after a space) opens a menu of every block type in Notion: headings, databases, callout boxes, toggles, dividers, embeds, and more. Start typing after the slash to filter to what you need — /head for headings, /todo for a to-do list, /toggle for a toggle block. Press Enter to insert.
This single interaction replaces toolbar clicks and formatting menus for the majority of block creation in Notion. Understanding the slash command is more valuable than memorizing most individual shortcuts.