Fourteen people face prosecution this year for paying for sex with a prostitute - twice as many as last year.
New figures also show 216 people have faced prosecution for brothel-keeping, prostitution or human-trafficking over the past decade.
Since April 2017, it has been illegal to buy sexual services from a prostitute.
According to details released under the Freedom of Information, there has been a recent rise in prosecutions.
Last year, the Director of Public Prosecutions (DPP) directed that seven people face should face court proceedings for the offence.
So far this year however, that has risen to 14 - including suspects in Cork, Dublin, Louth and Wexford.
Sheila Crowley is from Ruhama, which supports women affected by prostitution.
She says the figures are very low, but Gardaí are trying to enforce the law.
"The Gardaí have really stepped up a gear in recent months, and they are taking this legislation very seriously now.
"I would hope to see more arrests in the future, because that's the only way there will be a deterrent to men buying sex.
"We know that from the research - where men have actually said the only thing that would deter them is the embarrassment of actually getting caught and going to court".
These figures also show that since 2009, 150 people have been prosecuted for running a brothel, 22 people for people-trafficking and for 44 for what the DPP describes as 'other prostitution' offences.
Reporting by Eoghan Murphy