MOS:EM may refer to:

• Manual of Style#Dashes (EMDASH)
• Manual of Style/Text formatting#Emphasis (EMPHASIS)

• Nerve growth factor
• Nerve impulse
• Nerve impulses
• Nerve (magazine)
• Nerve net
• Nerve of a covering
• Nerves
• Nerve Software
• Nerve system
• Nerve tissue
• Nerve (website)
• Nervii
• Nervion
• Nervion River
• Nervión
• Nervous Breakdown (EP)
• Nervous Gender
• Nervous Man in a Four Dollar Room
• Nervous network
• Nervous Norvus
• Nervous System
• Nervous system
• Nervous systems
• Nervous tissue
• Nervous & Weird