The Nigerian National Assembly delegation from Abia comprises three Senators representing Abia Central, Abia South, and Abia North, and eight Representatives representing Ikwuano/Umuahia North/Umuahia South, Bende, Isuikwato/Umunneochi, Arochukwu/Ohafia, Aba North/Aba South, Ukwa East/Ukwa West, Isiala Ngwa North/South and Obingwa/Osisioma/Ugbunagbo.
The senators and representatives of the 4th National Assembly were:
The senators and representatives of the 5th National Assembly were:
The senators and representatives of the 6th National Assembly were:
The senators and representatives for the 7th National Assembly were:
The senators and representatives for the 8th National Assembly were:
The senators and representatives for the 9th National Assembly were: