Masallacin Sidi Boumediene (Larabci: مسجد شعيب أبو مدين) ko Masallacin mai bautar (Larabawa: مسجد العباد) wani katafaren rukunin addinin Islama ne a Tlemcen, Algeria, wanda aka keɓe ga babban waliyyin Sufi Abu Madyan. Abu Madyan ya sami yabo daga Seville kuma ya ba da gudummawa sosai wajen yaɗuwar tasawwuf a yankin Maghreb. Masarautan Marinid na Morocco suka kafa masallacin a shekara ta 1339. An kafa madrasa ne shekaru takwas bayan masallacin, inda Ibn Khaldun ya koyar sau daya. An kuma kafa fadar ta Dar al-Sultan da kuma a can kasan wurin da hadaddun, inda sarakunan suka tsaya yayin ziyarar su zuwa masallacin. Masallacin Sidi al-Haloui, wanda aka gina a shekarar 1353, an yi masa kwatankwacin abin a hankali. Gidan ya ƙunshi gine-ginen addini da yawa da suka haɗa da masallaci, kabari, madrasa da hamam. Masallacin yana da babbar hanyar shiga da ta yi kama da ta sauran gine-ginen Moorish masu yawa daga Córdoba zuwa Kairouan. Ofar tana kaiwa zuwa ga hotunan zane-zanen filastar. A saman dome akwai muqarnas. Yana ci gaba zuwa matakala wanda yayi kama da na Puerta del Sol, Toledo.