Question

What is the name given to a two-line rhyming stanza in poetry?

Is a Couplet ?

I googled the meaning of couplet, it sounds right.
thanks
Ms. Sue
Yes. It's a couplet. However, couplets don't always rhyme.

The trouble with a kitten is that
Eventually it becomes a cat.

-- Ogden Nash

http://literarydevices.net/couplet/