Ireland has two legal definitions of rape:
1.A man commits rape if (a) he has unlawful sexual intercourse with a woman who at the time of the intercourse does not consent to it, and (b) at that time he knows that she does not consent to the intercourse or he is reckless as to whether she does or does not consent to it, and references to rape in this Act and any other enactment shall be construed accordingly.
2. Asexual assault that includes (a) penetration (however slight) of the anus or mouth by the penis, or (b) penetration (however slight) of the vagina by any object held or manipulated by another person.
Legal Source
1.Criminal Law (Rape) Act 1981, Section 2
2.Criminal Law (Rape) (Amendment) Act 1990, Section 4