| SPA | Derived from the name of the town of Spa, Belgium (Aquae Spadanae) 
| Others |
| SPA | S-band Power Amplifier
| Others |
| SPA | Saab Parking Assistance
| Others |
| SPA | Sale and Purchase Agreement
| Others |
| SPA | Sales and Purchase Agreement
| Others |
| SPA | Sales and Purchase Analysis
| Others |
| SPA | Salus Per Aqua
| Others |
| SPA | Salus Per Aquam
| Others |
| SPA | Salute Per Aqua
| Others |
| SPA | Samples Per Average
| Others |
| SPA | Sanitas Per Aqua
| Others |
| SPA | Sanitas per aquam
| Others |
| SPA | Sante Per Aqua
| Others |
| SPA | Santi Per Aqua
| Others |
| SPA | Sanum per Aqua
| Others |
| SPA | Sanus Per Aquam
| Others |
| SPA | Saudi Press Agency
| Others |
| SPA | Scalable Platform Architecture
| Others |
| SPA | Scalable Product Architecture
| Others |
| SPA | Scan, Predict, and Act
| Others |
| SPA | Scania Production Angers
| Others |
| SPA | School of Physics and Astronomy
| Others |
| SPA | School of Planning and Architecture, New Delhi
| Others |
| SPA | School of Public Administration
| Others |
| SPA | School of Public Affairs
| Others |
| SPA | Science Practical Assesment
| Others |
| SPA | Science Practical Assessment
| Others |
| SPA | Scintillation Proximity Assay
| Others |
| SPA | Scottish Police Authority
| Others |
| SPA | Scottish Prescribing Analysis
| Others |
| SPA | Scratchpad Area
| Others |
| SPA | Scripture Principle Application
| Others |
| SPA | Search Predict Act
| Others |
| SPA | Secure Password Authentication
| Others |
| SPA | Secure Perimeter Architecture
| Others |
| SPA | Secure Print Advantage
| Others |
| SPA | Security Posture Assessment
| Others |
| SPA | Security Potential And Aspiration
| Others |
| SPA | Self Propelled Adrenaline
| Others |
| SPA | Senior Pattern Association
| Others |
| SPA | Sergio Pablos Animation
| Others |
| SPA | Server Participation Arrangement
| Others |
| SPA | Service Planning Area
| Others |
| SPA | Service Processor Accessory
| Others |
| SPA | Service Provider Access
| Others |
| SPA | Service Provider Attack
| Others |
| SPA | Service Providers Assessments
| Others |
| SPA | Service Provision Assessments
| Others |
| SPA | Servo Power Amplifier
| Others |
| SPA | Share Purchase Agreement
| Business, Finance, Investment |
| SPA | Share Purchase Agreement
| Others |
| SPA | Shared Peripheral Area
| Others |
| SPA | Shared Port Adapter
| Others |
| SPA | Shared Port Adaptor
| Others |
| SPA | Sheep Pulmonary Adenomatosis
| Others |
| SPA | Shree Prajapati Association
| Others |
| SPA | Shrinking Pleuritis with Atelectasis
| Others |
| SPA | Signal Processor Assembly
| Others |
| SPA | Singapore Physiotherapy Association
| Others |
| SPA | Singe Page APPLICATION
| Others |
| SPA | Single Page Application
| Others |
| SPA | Single Page Applications
| Others |
| SPA | Single Pitch Award
| Others |
| SPA | Single Point Accountable
| Others |
| SPA | Single Point of Access
| Others |
| SPA | Single Point of Accountbility
| Others |
| SPA | Single Pole Approximations
| Others |
| SPA | Skater Punks of America
| Others |
| SPA | Skill Performance Aids
| Others |
| SPA | Slot Plane Antenna
| Others |
| SPA | Small Payload Accommodations
| Others |
| SPA | Small Practices Association
| Others |
| SPA | Small Project Assistance
| Others |
| SPA | Smart Parking Assist
| Others |
| SPA | Smart Pixel Array
| Others |
| SPA | Smart Process Application
| Others |
| SPA | Snap Preview Anywhere
| Others |
| SPA | Societ Per Azioni
| Others |
| SPA | Societa Per Azione
| Others |
| SpA | Società per Azioni
| Others |
| SPA | Societa Piemontese Automobili
| Others |
| SPA | Society of Practising Accountants
| Others |
| SPA | Software Process Assessment
| Others |
| SPA | Software Product Assurance
| Others |
| SPA | Software Publishers Association
| Others |
| SPA | Software Publishing Association
| Others |
| SPA | Solar Panel Assembly
| Others |
| SPA | Sole Placing Agency
| Others |
| SPA | Soluble Protective Antigen
| Others |
| SPA | Solus Per Aqua
| Others |
| SPA | Sonic Park Assist
| Others |
| SPA | Sonic Pocket Adventure
| Others |
| SPA | Sound And Public Address
| Others |
| SPA | South Pacific Ocean
| Others |
| SPA | Southern Precision Armory
| Others |
| SPA | Southern Pullers Association
| Others |
| SPA | Southgate Parents Association
| Others |
| SPA | Southwark Pastoral Auxiliary
| Others |
| SPA | Space Processing Application
| Others |
| SPA | Spam Protection Agency
| Others |
| SPA | Spare Parts Analysis
| Others |
| SPA | Spartan Parents Association
| Others |
| SPA | spastic ataxia
| Others |
| SPA | Special Parking Area
| Others |
| SPA | Special Police Animals
| Others |
| SPA | Special Power Authorization
| Others |
| SPA | Special Power of Attorney
| Others |
| SPA | Special Price Authorization
| Others |
| SPA | Special Project Aquarius
| Others |
| SPA | Special Projects Administration
| Others |
| SPA | Special Projects Application
| Others |
| SPA | Special Prorate Agreement
| Others |
| SPA | Special Protection Area
| Others |
| SPA | Special Protocol Assessment
| Others |
| SPA | Special Psychological Operations (PSYOP) Assessment
| Others |
| SPA | Specialty Professional Association
| Others |
| SPA | Sperm Penetration Assay
| Others |
| SPA | sphenopalatine artery
| Others |
| SPA | spinal anaesthesia
| Others |
| SPA | Spiritual And Personal Adjustments
| Others |
| SPA | Spiritual And Practical Answers
| Others |
| SPA | Spondylitis Ankylopoetica
| Others |
| SPA | spondyloarthropathy
| Others |
| SPA | Sponsored Programs Administration
| Others |
| SPA | Spontaneous Physical Activity
| Others |
| SPA | Spontaneous Platelet Aggregation
| Others |
| SPA | Spurassistent
| Others |
| SPA | Spyros Panopoulos Automotive
| Others |
| SPA | Sql Performance Analyzer
| Others |
| SPA | St Paul Academy
| Others |
| SPA | Standardization Process Assurance
| Others |
| SPA | Standardized Patient Assessment
| Others |
| SPA | Standardized Performance Analysis
| Others |
| SPA | staphylococcal protein A
| Others |
| SPA | State Plan Amendment
| Others |
| SPA | Stationary Phase Approximal
| Others |
| SPA | Stationary Phase Approximation
| Others |
| SPA | Steering Position Amplifier
| Others |
| SPA | Steyr Puch Austria
| Others |
| SPA | Stochastic Process Algebra
| Others |
| SPA | Stop when Pizza Arrives
| Others |
| SPA | Storage Pool Authority
| Others |
| SPA | Strategic Partnership Agreement
| Others |
| SPA | Strike Planning Archive
| Others |
| SPA | Structured Professional Activities
| Others |
| SPA | Students Personal Advisor
| Others |
| SPA | Subaru Protection Agency
| Others |
| SPA | Submarine Patrol Area
| Others |
| SPA | Subsidy Policy Announcement
| Others |
| SPA | Suicide Prevention Aide
| Others |
| SPA | Summer Performing Arts
| Others |
| SPA | Super Powerful Amphetamine
| Others |
| SPA | Superficial Palmar Arch
| Others |
| SPA | Support Prepare Advance
| Others |
| SPA | Support Providers Annex
| Others |
| SPA | Support Purpose Appreciation
| Others |
| SPA | Supporting Professional Activities
| Others |
| SPA | suprapubic (bladder) aspiration
| Others |
| SPA | Supreme People's Assembly
| Others |
| SPA | surfactant protein A
| Others |
| SPA | Surfactant Proteins - A
| Others |
| SPA | Sussex Police Authority
| Others |
| SPA | Sustainability Performance Assessment
| Others |
| SPA | Swim Parents Association
| Others |
| SPA | Symantec Protection Agent
| Others |
| SPA | System Performance Analysis
| Others |
| SPA | System Physical Address
| Others |
| SPA | Systems and Procedures Association
| Others |
| SPA | Systems Planning and Analysis
| Others |
| SPA | The Secular Progressive Alliance
| Others |
| SPA | The Student Personnel Association
| Others |