Sir al-Gharbiyah (Arabic: سير الغربية) is a municipality just north of the Litani River, in the Nabatieh District in southern Lebanon.

In the 1596 tax records, it was named as a village, Sir, in the Ottoman nahiya (subdistrict) of Sagif under the liwa' (district) of Safad, with a population of 10 households, all Muslim.

The villagers paid a fixed tax-rate of 25% on agricultural products, such as wheat, barley, olive trees, goats and beehives, in addition to "occasional revenues"; a total of 2,000 akçe.

They were chosen after a round up of all the village men and machine gunned in the legs, two were bayoneted in the abdomen and one held under water until he drowned.

[5] Hassan Maatouk, the Lebanon national football team all-time goalscorer and most-capped player, is native to Sir al-Gharbiyah.