Which god? Any of these? All of these? Please note this is a *partial* list.
Oh, and what if you're wrong? Given how many there are, what are the odds you picked the "one true god"? Tell us how you came to that conclusion, given how many there are.
A, Adad, Adapa, Adrammelech, Aeon, Agasaya, Aglibol, Ahriman, Ahura Mazda, Ahurani, Ai-ada, Al-Lat, Aja, Aka, Alalu, Al-Lat, Amm, Al-Uzza (El-'Ozza or Han-Uzzai), An, Anahita, Anath (Anat), Anatu, Anbay, Anshar, Anu, Anunitu, An-Zu, Apsu, Aqhat, Ararat, Arinna, Asherali, Ashnan, Ashtoreth, Ashur, Astarte, Atar, Athirat, Athtart, Attis, Aya, Baal (Bel), Baalat (Ba'Alat), Baau, Basamum, Beelsamin, Belit-Seri, Beruth, Borak, Broxa, Caelestis, Cassios, Lebanon, Antilebanon, and Brathy, Chaos, Chemosh, Cotys, Cybele, Daena, Daevas, Dagon, Damkina, Dazimus, Derketo, Dhat-Badan, Dilmun, Dumuzi (Du'uzu), Duttur, Ea, El, Endukugga, Enki, Enlil, Ennugi, Eriskegal, Ereshkigal (Allatu), Eshara, Eshmun, Firanak, Fravashi, Gatamdug, Genea, Genos, Gestinanna, Gula, Hadad, Hannahanna, Hatti, Hea, Hiribi, The Houri, Humban, Innana, Ishkur, Ishtar, Ithm, Jamshid or Jamshyd, Jehovah, Jesus, Kabta, Kadi, Kamrusepas, Ki (Kiki), Kingu, Kolpia, Kothar-u-Khasis, Lahar, Marduk, Mari, Meni, Merodach, Misor, Moloch, Mot, Mushdama, Mylitta, Naamah, Nabu (Nebo), Nairyosangha, Nammu, Namtaru, Nanna, Nebo, Nergal, Nidaba, Ninhursag or Nintu, Ninlil, Ninsar, Nintur, Ninurta, Pa, Qadshu, Rapithwin, Resheph (Mikal or Mekal), Rimmon, Sadarnuna, Shahar, Shalim, Shamish, Shapshu, Sheger, Sin, Siris (Sirah), Taautos, Tammuz, Tanit, Taru, Tasimmet, Telipinu, Tiamat, Tishtrya, Tsehub, Utnapishtim, Utu, Wurusemu, Yam, Yarih (Yarikh), Yima, Zaba, Zababa, Zam, Zanahary (Zanaharibe), Zarpandit, Zarathustra, Zatavu, Zazavavindrano, Ziusudra, Zu (Imdugud), Zurvan
The above list is from this site (and even this list isn't complete):
http://www.rationalresponders.com/a_big_list_of_gods_but_nowhere_near_all_of_them
Safe bet you're an atheist with respect to every other god in that list, and reject all if their "ludicrous" claims. When you understand why you dismiss all the other gods, you'll understand why I dismiss yours.