About

John O’Connell is an attorney at Simpson Thacher & Bartlett LLP in New York, New York, where he practices general law with a client-focused and detail-oriented approach. Serving individuals and businesses alike, he works to provide practical, thoughtful legal guidance tailored to each client’s needs. His practice reflects the firm’s commitment to delivering high-quality legal counsel with professionalism, responsiveness, and sound judgment. Based in New York City, John O’Connell brings a broad legal perspective to his work, helping clients navigate a wide range of matters with clarity and confidence. As a general practice attorney, he understands the importance of addressing legal issues efficiently while remaining attentive to the broader goals and concerns that matter most to each client. He is admitted to practice in New York under Bar Number 5081203. Known for his thoroughness and commitment to service, John O’Connell approaches each matter with care, diligence, and a strong work ethic. He is dedicated to building trusted client relationships and providing dependable support throughout every stage of representation. Whether assisting with day-to-day legal questions or more complex matters, he strives to deliver practical solutions and consistent advocacy.

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