In a general context

• Customer Selling Proposition
• Caledonian Steam Packet Company
• Calendar of State Papers England
• California Society of Printmakers
• California State Parks
• Carlo-Schmid-Programm
• Carol Shea-Porter
• Center for Security Policy
• Civil Services of Pakistan
• Certified Safety Professional
• Certified Sales Professional
• Certified Service Professional
• Certified Speaking Professional
• Certified Staffing Professional
• Chartered Society of Physiotherapy
• Chicago Socialist Party
• Chicken Slayer Productions
• Chiral Stationary Phase in chiral column chromatography
• Christian Social Party
• Colorado Springs Police
• Colorado State Patrol
• Commonwealth Supported Place
• Compulsive/chronic skin picking
• Concordia University, Saint Paul
• Concentrating solar power, a type of design for electricity generating stations.
• Confederation of Societies Party
• Council on Spiritual Practices
• Congregation of Saint Paul
• Conservation Security Program
• Council Shoulder Patch or CSP, a piece of insignia on the Uniform of the Boy Scouts of America
• Cornish Stannary Parliament
• Credential Service Provider
• Capability Sustainment Programme
• Compounding of sterile preparations
• Chiral Stationary Phase

In telecom

• Communication Service Provider
• Channel Selection Policy

In computing and electronics

• Caché Server Pages
• CanTho Software Park
• Chip scale package, or Chip size package
• Chief Solution Provider
• Chip support package
• Client Service Plan
• Communicating sequential processes
• Constraint satisfaction problem
• CounterStrike Promod
• Critical Security Parameter
• Customer Service Patch
• Cryptographic Service Provider

In Biology

• Cysteine String Protein
• Chemosensory protein

In Energy

• Concentrating solar power

In Linguistics

• Core Syllabification Principle

In Religion & Spirituality

• Council on Spiritual Practices

In Transportation

• CSP is the ICAO airline designator for Casper Air Service, United States

In construction

• CSP Certified Service Professional is the designation for trained swimming pool contractors
• Corrugated Steel Pipe

In steel production and processing

• CSP Compact Strip Production