The word(s) "transgressor" appears 28 time(s) in 27 verse(s) in Quran in Abdullah Yusuf Ali translation.

(21) Then, in their wake, We followed them up with (others of) Our messengers: We sent after them Jesus the son of Mary, and bestowed on him the Gospel; and We ordained in the hearts of those who followed him Compassion and Mercy. But the Monasticism which they invented for themselves, We did not prescribe for them: (We commanded) only the seeking for the Good Pleasure of Allah; but that they did not foster as they should have done. Yet We bestowed, on those among them who believed, their (due) reward, but many of them are rebellious transgressors.

(22) And be ye not like those who forgot Allah; and He made them forget their own souls! Such are the rebellious transgressors!

(23) And remember, Moses said to his people: "O my people! why do ye vex and insult me, though ye know that I am the messenger of Allah (sent) to you?" Then when they went wrong, Allah let their hearts go wrong. For Allah guides not those who are rebellious transgressors.

(24) It is equal to them whether thou pray for their forgiveness or not. Allah will not forgive them. Truly Allah guides not rebellious transgressors.

(25) But those who trespass beyond this are transgressors;-

(26) For the transgressors a place of destination:

(27) And none can deny it but the transgressor beyond bounds the Sinner!