It's tricky to definitively say which tectonic plate is the smallest because there's no universally accepted definition of what constitutes a "plate."

Here's why:

* Plate boundaries are constantly changing: The Earth's tectonic plates are always moving and interacting, creating, destroying, and merging. This means the size and shape of plates are in flux.

* Microplates and blocks: There are smaller pieces of lithosphere called microplates and blocks that might not meet the criteria of a "full" plate. These can be smaller than some of the smaller "official" plates.

However, if we look at the generally recognized major tectonic plates, the smallest are often considered to be:

* The Arabian Plate: Located in the Middle East, it's about half the size of the North American Plate.

* The Philippine Sea Plate: Located in the western Pacific Ocean, it's a bit smaller than the Arabian Plate.

It's important to note: There are many smaller microplates and blocks, some even smaller than the Arabian and Philippine Sea Plates, but they're not always included in the standard list of major plates.