The Great Recession has resulted in various changes in homeless populations in municipalities throughout the world. From “unsheltered homeless” in NYC to "rough sleepers" in London and to "sans-abris" in Paris, or "poblacion callejera" in Mexico City, the economic crisis of 2008 impacted economies in ways that put severe pressures on housing, particularly at the lower-income-level brackets. After all, the Great Recession was generated by a housing bubble, which then constricted capital markets for housing. After the immediate crisis, economic stabilization was followed by stagflation or deflation. There were flat or decreasing wages in the middle- to low-income brackets and high unemployment. Many governments responded with austerity measures to decrease public spending. This research takes a global perspective on the impact of the recession on trends for unsheltered homelessness in twenty of the largest municipalities in OECD countries from 2005-2014.