Unfortunately, no, but there are certainly others!
The easiest way to explain is that if it doesn’t live in the water, then chances are, it’s not a particularly good swimmer. Thus, the tyrunt line, vibrava and flygon, the axew line, and druddigon are perhaps the worst swimmers, although with enough patience, the axew line and druddigon can learn. Also, despite living in cave or mountain systems with sources of water nearby, the same can be said for the jangmo-o line, the deino line, turtonator, and the gible line. (Of these, only the gible line and deino’s evolutions can’t be taught to swim—the latter only because zweilous’s heads get in the way, and hydreigon prefers to fly, regardless of what you have to say.) Altaria also struggles, more because its wings can’t retain moisture that well. Lastly, Alolan exeggutor, despite thriving in its island environment, lacks the limb mobility to swim. It can float, however, and is known to wash up on the shores of the other Alolan islands from time to time.
By contrast, the best swimmers are obviously kingdra and dragalge, as both of these live exclusively in the water. The dratini line is also marine in nature, and dragonite is perhaps one of the best swimmers that actually has limbs. Drampa can also be found enjoying a swim through Alolan rivers on particularly sunny days, and the goomy line, being an amphibious pokémon that needs water to live, will often be found doing the same in Kalosean swamps. Finally, shockingly, both bagon and noibat are excellent swimmers, likely due to necessity. Both tend to nest in cave systems (or cliff systems, in bagon’s case) with water sources, and both have a tendency to drop out of the air without warning. Noibat retains this ability to swim even after it figures out how to fly as a noivern, but bagon, perhaps due to a combination of an extended pupal state combined with a generally less graceful adult stage, loses that ability upon evolution and must be retaught. (Note: It’s not possible to teach a shelgon due to its weight and lack of mobility, but with enough patience, you may be able to teach a salamence.)
This all, of course, excludes legendary pokémon (whose swimming habits we generally know very little about) and mega evolutions (which don’t entirely count anyway).