Simon Nielsen may refer to:

• Simon Nielsen (ice hockey) (born 1986), Danish ice hockey goaltender
• Simon Nielsen (speedway rider) (born 1990), Danish motorcycle speedway rider

• Peninsula Panthers
• Peninsula Papagayo
• Peninsula Pilots (minor league team)
• Peninsula Power
• Peninsula Princess
• Peninsula Princess (Australia)
• Peninsula Princess (Canada)
• Peninsula Princess (disambiguation)
• Peninsula Railroad
• Peninsula Railroad (disambiguation)
• Peninsula Railway
• Peninsular and oriental steam navigation company
• Peninsular Arch
• Peninsular chuckwalla
• Peninsular Chuckwalla
• Peninsular Corea
• Peninsular Corean
• Peninsular Corean language
• Peninsular Corean languages
• Peninsulares
• Peninsular Gas Pipeline
• Peninsular Gneiss
• Peninsular Gold Cross
• Peninsular Gold Medal
• Peninsular Korea