Help Our Kelp Act This bill directs the National Oceanic and Atmospheric Administration (NOAA) to establish a grant program to fund projects to conserve, restore, or manage kelp forest ecosystems. (A kelp forest is a dense grouping of large brown algae which also serves as a habitat for marine life.) Eligible projects include those that address the greatest relative regional declines in kelp forest ecosystems, focus on kelp forest seeding and connectivity, or integrate Indigenous knowledge and cultural practices into the restoration and monitoring of kelp forest ecosystems. The bill specifies that members of the fishing industry, institutions of higher education, nonprofit organizations, Indian tribes, state agencies, and local governments are eligible to receive grants. The bill prohibits a grant from exceeding 85% of the total project cost. However, NOAA may waive this restriction in limited circumstances.