What is the generic name of tramadol?

What generic name does tramadol have?

Tramadol’s generic name is simply tramadol (it is not a different-sounding generic under another name). [1]

Is tramadol ever sold under different generic names?

No. Products may be branded differently (and may use different formulations such as extended-release), but the underlying generic drug name remains tramadol. [1]

Sources:
[1] https://www.drugs.com/international/tramadol.html