The Scottish Catholic International Aid Fund (Sciaf) has been providing aid to Syrian refugees via its international partner Caritas since December last year.
This has included providing food vouchers, clothes and accommodation as well as support for medical care and trauma counselling for refugees and their hosts in Jordan.
The latest financial commitment to refugees extends Sciaf's work to Lebanon, which has been put under a huge amount of pressure since the start of the conflict in neighbouring Syria, with refugees now making up almost 25% of the population.
Sciaf is a member of Caritas Internationalis, a global confederation of 165 Catholic organisations which is one of the largest humanitarian aid networks in the world.
While the latest figures from the United Nations High Commissioner for Refugees (UNHCR) puts the number of Syrian refugees in Lebanon at 793,615, Caritas Lebanon estimates the true total to be around 1.5 million.
Father Simon Faddoul, president of Caritas Lebanon, said: "Syrians are in every possible corner. The impact of their presence in Lebanon is going to be, in my opinion, horrible."
Val Morgan, of Sciaf, said: "The plight of Syrian refugees continues to deteriorate. The longer this horrific war goes on, the worse the situation gets, both in terms of being able to keep up with the level of aid needed by the growing number of refugees and the huge impact this is having on neighbouring countries and their own communities."
Many Lebanese people are offering rooms in their home for Syrian refugees to rent, but the charity says a better long-term solution to the refugee situation needs to be found.