The Laguna Provincial Board (Filipino: Sangguniang Panlalawigan ng Laguna) is the Sangguniang Panlalawigan (provincial legislature) of the Philippine province of Laguna.

The candidates with the highest number of votes in each district, depending on the number of members the district sends, are elected.

Beginning in 2025, the lone congressional districts of Biñan, Calamba, and Santa Rosa will also align with the legislative districts, bringing the total to seven.

[1] Three additional ex officio members are the presidents of the provincial chapter of the Association of Barangay Captains, of the Sangguniang Kabataan, and of the Philippine Councilors League.

The municipal and city (if applicable) presidents of the Association of Barangay Captains and of the Sangguniang Kabataan shall elect amongst themselves their provincial presidents who shall be their representatives at the board.