Apple - Keyboard shortcut to delete row in Numbers

By default, no, there's no shortcut.

You can create one yourself though:

  1. Open System PreferencesKeyboardShortcutsApp Shortcuts.

  2. Click the + button to add a new shortcut.

  3. Set the Application to, and the Menu Title to Delete Row.

  4. Set your keyboard shortcut and press Add.

As of at least Numbers 4.3.1, there is a menu item in the Table menu for deleting the current row (as well as one for deleting the current column), with keyboard shortcuts:

Delete Row: Shift+Command+X

Delete Column: Shift+Command+Y