ACAPS Humanitarian Access Overview provides a snapshot of the most challenging contexts to operate. Crisis-affected populations in more than 70 countries are not receiving the humanitarian assistance they need because of access constraints. No new countries have entered the ranking since the last Humanitarian Access Overview from July 2021. In line with the previous report, the indicators ‘restrictions and obstruction to services and assistance’ and ‘environmental constraints’ are the most common challenges throughout the crisis, scoring the highest among the considered indicators. Cameroon, Colombia, DPRK, Ukraine, and Venezuela are among the crises where access has deteriorated considerably over the past six months.