[Your Name]
[Your Address]
[Your Phone Number] | [Your Email Address]

[Date]

To the Board of Directors,
[Organization's Name]
[Organization's Address]

Attn.: [Board Chair's Name], Chair of the Board

Dear Members of the Board,

I am writing to formally submit my resignation from my position on the Board of Directors of [Organization's Name], effective [Date].

After careful consideration, I have decided to step down due to [brief, optional reason, e.g., increasing professional commitments, personal reasons, a new opportunity]. This was not an easy decision, as my time serving this organization has been incredibly meaningful.

I am proud of the progress we have made together, and I want to express my deep appreciation for the opportunity to contribute to this esteemed group. Working alongside such dedicated and insightful individuals has been a privilege.

To ensure a smooth transition, I am committed to assisting in any way I can over the coming [weeks/month]. I am available to help with the transfer of my responsibilities and to support the process of identifying a successor.

Thank you for the trust you placed in me. I am confident in the continued success of [Organization's Name] and look forward to following its future achievements.

Respectfully,

[Your Signature]
[Your Typed Name]