The Dublin Rape Crisis Centre saw an increase in the number of people contacting it last year.
The organisation's annual report shows that almost 13,000 people contacted the Dublin Rape Crisis Centre in 2017 an increase of 500 compared to the previous year.
Over 34% of the calls related to child sexual abuse.
The report also said a number of people have reported being sexually assaulted by a person they met through online dating websites.
The DRCC is calling for online dating companies to put safeguards in place to ensure people can be traced.
It said other trends include an apparent increase in the incidence of rape at house parties or in friend's homes.
Increases were also recorded in referrals from mental health agencies and in the number of refugee clients.
DRCC Chief Executive Noeline Blackwell said the voice of the victim of rape and their rights are not well understood in Ireland's courts system.
Speaking on RTÉ's Morning Ireland, she said there still needs to be proper representation for the accused, but "the victim needs to be able to present their evidence in a way that is at least as accessible to the jury and to the judge."
She said: "What you need to do in some way is triangulate the system. There will still be a prosecutor, there will still be an accused, but the victim needs their place in court to be recognised as well".
She said the review currently being undertaken by the Minister for Justice Charlie Flanagan about how victims of sexual offences are treated in court is "very, very" important.
