Level 5 may refer to:
Level 5 in UK National Qualifications Framework Level 5 in International Nuclear Event Scale "Serious Accident", the penultimate level Level 5 in English football league system (section Promotion and relegation rules for the top eight levels) Honeywell Level 6 minicomputer manufactured by Honeywell, Inc. from the mid 1970s STANAG 4569 protection level