Domestic Homicide or Intimate Partner Homicide?
The ONS defines domestic homicide as including the following: spouse, cohabiting partner, boyfriends/girlfriend, ex-spouse/ex-co-habiting partner, ex-boyfriend/girlfriend, adulterous relationship, lover’s spouse and emotional-rival as well as son/daughter, parent (including step and adopted relationships), which is broader than the generally understood partner or ex-partner to more closely align with the government definition of domestic violence.
Intimate partner homicides are a subset of this and are committed by cohabiting partner, boyfriends/girlfriend, ex-spouse/ex-co-habiting partner, ex-boyfriend/girlfriend, adulterous relationship, lover’s spouse and/or emotional-rival.
Domestic Violence – Who gets killed?

More women than men are killed in the context of ‘domestic homicide’, 315 women in 3 years compared to 117 men. Women were 73% of all victims of domestic violence homicide, men were 27% of all victims of domestic violence homicide.
Domestic Violence – Who gets killed by whom?

Women killed in the context of ‘domestic homicide’ are more likely than men to be killed by members of the opposite sex: Of the 315 female victims of ‘domestic homicide’, 304 (97%) were killed by men. Of the 117 male victims of ‘domestic homicide’, 37 (32%) were killed by women
Domestic Violence -Who kills?

Intimate Partner Violence – Who gets killed?

More women than men are killed by a partner/ex-partner, 243 women in 3 years compared to 60 men. Women were 80% of all victims of intimate partner homicide (243/303), men were 20% of all victims of intimate partner homicide (60/303)
Intimate Partner Violence – Who kills?

Intimate Partner Violence – Who gets killed by whom?

Men killed by current or ex-intimate partners are more likely than women to have been killed by someone of the same sex. Of the 60 male victims of intimate partner homicide, 27 (45%) were killed by men, 33 (55%) were killed by women. Of the 243 female victims of intimate partner homicide, 2 (1%) were killed by women, 241 (99%) were killed by men.
Of those killed in the context of intimate partner homicide by someone of the opposite sex, women were 88% (241/274) of victims, men were 12% (33/274), i.e. women are more than 7 times more likely to be killed by a man, than men are by a women in the context of intimate partner homicide.