List of longest spacewalks
This is a list of the 20 longest spacewalks, also known as an extra-vehicular activity or EVA. "Agency" here refers to the organization under whose auspices the EVA was conducted (so a Swiss or Japanese astronaut would be listed under NASA if they wore NASA suits and were controlled by Mission Control Houston). For details, see lists of spacewalks from 1965-1999, 2000-2014, and 2015-present.