Chrome keyboard shortcut to "close other tabs"?

In Chrome we can close all the tabs in a window while keeping a selected one open.

Is there a keyboard shortcut to "close other tabs"?

There is no keyboard shortcut I know of and after checking Google forums, neither does anyone else.

You could use the extension Close Inactive Tabs instead - This adds a button which closes all other tabs except the active one.

I wrote this extension so that we can assign shortcuts for closing tabs to the right / left / other tabs / pin / unpin tab. Let me know if you can use it.

Update 2019/06/10: Still works with Chrome 75

The shortcut key to close all other tabs is CtrlShiftAltW if you install Amazing Tab Shortcuts, freely available in the Chrome Web Store.

I use it frequently for scripts, which I suspect is your use.