One of the best Wikipedia pages I’ve ever seen: List of eponymous laws
Some of my favorites, starting with one that isn’t on the Wikipedia page (yet, I’ll check it out)…
Brooks’ law – Adding manpower to a late software project makes it later
Einstein’s General Theory of Relativity – matter causes space to curve
Occam’s razor – States that explanations should never multiply causes without necessity; When two explanations are offered for a phenomenon, the simplest full explanation is preferable
Pareto principle – States that for many phenomena 80% of consequences stem from 20% of the causes
Zipf’s law – in linguistics, the observation that the frequency of use of the nth-most-frequently-used word in any natural language is approximately inversely proportional to n, or, more simply, that a few words are used very often, but many or most are used rarely.
The full list of eponyms is here: Category:Lists of eponyms