Morten Nielsen may refer to:

• Morten Nielsen (1922-1944), Danish poet
• Morten Nielsen (born 19??), Danish bioinformatician
• Morten Nielsen (footballer born 1990), Danish footballer
• Morten Nielsen (footballer born 1982), Danish footballer
• Morten Nielsen (footballer born 1971), former Danish footballer
• Morten Nielsen (rower) (born 1980), Danish Olympic rower
• Morten B. Nielsen (born 1974), former Danish footballer

• J Drug Deliv
• J. Drug Deliv.
• J. Drug Des. Med. Chem.
• J Drug Des Med Chem
• J Drug Issues
• J. Drug Issues
• J Drug Metab Toxicol
• J. Drug Metab. Toxicol.
• J. Drug Res. Ayurvedic Sci.
• J Drug Res Ayurvedic Sci
• J. Drugs Ecotoxicol.
• J Drugs Ecotoxicol
• J. Drug Target.
• J Drug Target
• JDS Akishio
• JDS Akishio (SS-579)
• JDS Amagiri
• JDS Amagiri (DD-154)
• JDS Arashio
• JDS Asakaze
• JDS Ashigara
• JDS Atago
• J. D. Scholten
• J.D. Schwalm
• JDS Chōkai