There were 21 families that became homeless in the capital in April, with homeless figures rising significantly from the year before.
Almost 50 children also became homeless within the space of one month in Dublin.
There was also an increase of 38 adults becoming homeless between March and April.
The latest homeless figures for the month of April show a significant rise from the same month last year.
It shows that over 200 more families have been made homeless since April 2016, with figures showing that 476 more children became homeless in the same period.
The number of homeless adults has also risen significantly in one year from 2,806 in April 2016 to 3,337 in April 2017.
The rise in figures has been described as "disappointing" on a "distressing" week for homeless families.
A Focus Ireland spokesman said: "These highly disappointing figures come in what has been a distressing week for for a number of families who are homeless and worrying for all working in homeless services.
"These numbers must be seen as a line in the sand by the whole of government. They must see this cannot continue.
"The continued rise in homelessness shows that these efforts need to be redoubled and require the full support across all Government departments.''
Brian McLoughlin from Inner City Helping Homeless said: "Yet again we are seeing no improvement in the homeless crisis in Ireland as proper planning is not in place to assist these people in the short term.
"In the same week that these figures are released Inner City Helping Homeless has recorded record numbers of people presenting as sleeping rough. This isn't acceptable and can't continue.
"What was a national crisis and national disgrace has gone beyond that now. When families with small children have to sleep on the streets immediate action is needed. There are over 180,000 empty dwellings in Ireland yet homelessness has comes to this."
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