It is an "anomaly" needing to be rectified that the husbands and civil partners of peers and knights do not use the prefix "honourable", Conservative MP Oliver Colvile has said.
Mr Colville introduced new legislation under the ten minute rule on 3 July 2012, explaining to MPs that wives of those honoured with peerages or knighthoods receive the title "Lady".
His Honours (Equality of Titles for Partners) Bill would mean that "husbands of dames and baronesses should be allowed to call themselves honourable, similar to children of peers, should they want to", Mr Colville said.
"The honours system has evolved over the years," he noted.
"Surely we need to update the honours system for those who are in a civil partnership."
But Labour MP Chris Bryant argued that such titles were "relics of a bygone age", lacking any power.
The MP for Rhondda said: "Are there not too many titles already in this country to want to dole out a whole lot more?"
The bill was given a first reading without a vote, but it is unlikely to become law without government support.