Well, yes, I think so, a distinct path from other paths available at the time. For instance the Jains were following a different path with a different teacher at the time Buddha was alive.

He talked about the teachings he gave as the teacher for his followers after he died:

After the conversion of Subhadda, the Buddha spoke again to Venerable Ananda. "It may be, Ananda, that some of you will say, 'without the Buddha, the Sublime Teacher, there is no teacher for us'. No, Ananda, you should not think in this way. Whatever doctrine and discipline taught and made known by me will be your teacher when I am gone."

Buddha's Final Words of Advice (Part 2)

So he taught with the idea that his teachings would continue after he died. And that path which he taught, grounded by those teachings, is what we call Buddhism. So yes, I’d say he intended Buddhism.

What he didn’t intend though is an “ism” that separates itself from all other forms of thought and paths in the sense that if you are a Buddhist you can only listen to Buddhist teachers.. Unusually amongst religions, it’s a path to truths that you see for yourself. He made it very clear that we should listen to the truth wherever we hear teachers that inspire us towards it, and to be open to inspiration from anyone. You can’t follow everyone at once, and you may here many different inspiring teachers, and may need to choose one path that is particularly suited to you - but you can be open to inspiration and encouragement from all teachers of all religions or none who help you along the path.

And also encourage others to follow whatever is their path, whatever inspires them towards truth, true wisdom and understanding, openness, compassion, loving kindness and a basic groundedness. Which again may be in many different religions or not a religious path at all.