SMDR may refer to:

• Simple Metadata Registry, a way of describing metadata
• Station Messaging Detail Record, a way to record telecommunications system activity, also known as Call detail record or CDR
• Prince Rogers Nelson song title, SMDR is an abbreviation for "Sex, Music, Drugs, Romance".

• Tallmadge Police Department
• Tallmadge Police Department (Ohio)
• Tallmadge, Thomas
• Tallman & Bucklin
• Tallman, Charles
• Tall Mannas
• Tallman-Newlin Cabin
• Tall Mannis
• Tallman, Oregon
• Tallman, Richard
• Tallman, Thomas
• Tallman-Vanderbeck House
• Tallman–Newlin Cabin
• Tall Men with Feelings
• Tall morning glory
• Tall mulla mulla
• Tall nightshade
• Tall nutgrass
• Tall oak-bush
• Tall oakbush
• Tallo Gadji
• Tall oil fatty acid
• Talloires-Montmin
• Tallon (disambiguation)
• Tallong midge orchid