The article introduces the Masonic Institute for the Developing Brain (MIDB) Precision Brain Atlas, a comprehensive resource for personalized network topography and probabilities. The atlas is based on precision brain mapping functional magnetic resonance imaging methods and includes 53,273 individual-specific network maps from over 9,900 individuals across various ages and cohorts. The authors developed probabilistic network maps using multiple techniques, including Overlapping MultiNetwork Imaging (OMNI), to capture the unique topographical variability in functional neural networks among individuals. These maps improve the reproducibility of executive function statistical maps in brain-wide associations compared to group average-based parcellations. The atlas also provides a potential use case for targeted neuromodulation, such as transcranial magnetic stimulation (TMS), by allowing investigators to quantify the confidence of the spatial location of a network of interest. The MIDB Precision Brain Atlas is available online and encourages contributions from the scientific community to further explore and contribute to understanding human brain function more precisely.The article introduces the Masonic Institute for the Developing Brain (MIDB) Precision Brain Atlas, a comprehensive resource for personalized network topography and probabilities. The atlas is based on precision brain mapping functional magnetic resonance imaging methods and includes 53,273 individual-specific network maps from over 9,900 individuals across various ages and cohorts. The authors developed probabilistic network maps using multiple techniques, including Overlapping MultiNetwork Imaging (OMNI), to capture the unique topographical variability in functional neural networks among individuals. These maps improve the reproducibility of executive function statistical maps in brain-wide associations compared to group average-based parcellations. The atlas also provides a potential use case for targeted neuromodulation, such as transcranial magnetic stimulation (TMS), by allowing investigators to quantify the confidence of the spatial location of a network of interest. The MIDB Precision Brain Atlas is available online and encourages contributions from the scientific community to further explore and contribute to understanding human brain function more precisely.