LOSP may refer to:

• Lake Ontario State Parkway
• Liero Open Source Project
• Legion of Super-Pets

• List of 2015–16 Top 14 transfers
• List of 2015–16 WNBL season signings
• List of 2016 albums
• List of 2016 Summer Olympics broadcasters
• List of 2016 Summer Olympics medal winners
• List of 2018 FIFA World Cup controversies
• List of 2020 episodes
• List of 20 Dakika episodes
• List of 20 largest cities in Peru
• List of 20 most populous cities in Peru
• List of 20 Most Populous cities in Peru
• List of 20th century BCE lunar eclipses
• List of 20th Century Boys chapters
• List of 20th-century classical composers by birth date
• List of 20th Century Fox films (1915-2000)
• List of 20th Century Fox films (1915–2000)
• List of 20th Century Fox films (2001-present)
• List of 20th Century Fox films (2001–present)
• List of 20th Century Fox films in the 20th century
• List of 20th Century Fox films in the 21st century
• List of 20th century lunar eclipses
• List of 20th century Mexican composers
• List of 20th-century outdoor proponents and outdoor educators
• List of 20th-century Philippine comedians
• List of 20th century summiters of Mount Everest