Not including short story collections, poetry collections, anthologies, etc.
For me, I believe it’s Oroonoko by Aphra Behn because it was on the syllabus for three different classes that I took in college. Other than that, the most I’ve read a single book is twice, and that was Telegraph Avenue by Michael Chabon. I’ve read Dracula 1.5 times. Didn’t finish it the second time around.
wuthering heights! i’ve read it 3 times! which is a lot for me because i don’t care for re-reading personally haha
My favorite novel of all time. I’ve only read it once.