梅芙（英语：Medb；古爱尔兰拼音：[mɛðv]；中古爱尔兰语: Meḋḃ 或 Meaḋḃ；现代早期爱尔兰语：Meadhbh、[mɛɣv]；现代爱尔兰语：Méabh [mʲeːv]、Medbh 或 Maebh；有时会使用盎格鲁化的Maeve、 Maev 或 Maive /ˈmeɪv/），爱尔兰神话阿尔斯特传说中的康诺特省女王。在传说中，她的丈夫是Ailill mac Máta，但在这之前，她还有好几任前夫，均为康诺特省国王。她统治着克鲁亨山（现罗斯康门郡）。她既是阿尔斯特王Conchúr Mac Neasa的前妻也是他的敌人。在古代爱尔兰史诗《夺牛长征记》载，她领兵攻打阿尔特斯（今北爱尔兰）军队，在战争中其他女神运用法术，而梅芙则手持兵器亲临战阵。

Medb (Old Irish spelling, [mɛðv]; Middle Irish: Meḋḃ, Meaḋḃ; early modern Irish: Meadhbh, [mɛɣv]; Modern Irish: Méabh [mʲeːv], Medbh or Maebh; sometimes Anglicised Maeve, Maev or Maive /ˈmeɪv/) is queen of Connacht in the Ulster Cycle of Irish mythology. Her husband in the core stories of the cycle is Ailill mac Máta, although she had several husbands before him who were also kings of Connacht. She rules from Cruachan (now Rathcroghan, County Roscommon). She is the enemy (and former wife) of Conchobar mac Nessa, king of Ulster, and is best known for starting the Táin Bó Cúailnge ("The Cattle Raid of Cooley") to steal Ulster's prize stud bull.