| Yiğitler Bucak Merkezi, Bayramiç | Yiğitler, Ünye | Yiğitler, Çermik |
| Yiğitler, Demirci | Yiğitler, Karlıova | Yiğitler, Kemalpaşa |
| Yiğitler, Nazımiye | Yiğitler, Pazarcık | Yiğitler, Sason |
| Yiğitler, Tekman | Yiğitler, Yıldızeli | Yiğitler, Yenifakılı |
| Yiğitli, Çubuk | Yiğitpınarı, İhsaniye | Yiğitpınarı, Pasinler |
| Yiğittaşı, Pasinler | Yiğityatağı, Doğubayazıt | Yiğityolu, Bağlar |
| Yiğityolu, Karayazı | Yibinosaurus | Yidalpta |
| Yidalpta auragalis | Yidalpta flavagalis | Yidalpta selenalis |
| Yidalpta thetys | Yiddish | Yield |
| Yigoga | Yigoga acutijuxta | Yigoga aequicuspis |
| Yigoga alexandrae | Yigoga amasicola | Yigoga amasina |
| Yigoga atlantis | Yigoga atlas | Yigoga bornicensis |
| Yigoga brunneopicta | Yigoga caroli | Yigoga celsicola |
| Yigoga denticulosa | Yigoga dilucida | Yigoga disturbans |
| Yigoga etoliae | Yigoga eureteocles | Yigoga exacta |
| Yigoga facunda | Yigoga farsistana | Yigoga fidelis |
| Yigoga flavina | Yigoga forcipula | Yigoga glaucescens |
| Yigoga goateri | Yigoga gracilis | Yigoga gueddelanea |
| Yigoga helladica | Yigoga hyrcana | Yigoga imitata |
| Yigoga improba | Yigoga improcera | Yigoga iranica |
| Yigoga iranicola | Yigoga issykula | Yigoga jura |
| Yigoga kaaba | Yigoga karsholti | Yigoga khorassana |
| Yigoga latipennis | Yigoga leonina | Yigoga libanicola |
| Yigoga lithargyrula | Yigoga lupinus | Yigoga lutescens |
| Yigoga mirabica | Yigoga mixta | Yigoga multicuspis |
| Yigoga nachadira | Yigoga nigrescens | Yigoga obscurior |
| Yigoga ochrina | Yigoga orientis | Yigoga perturbans |
| Yigoga picturata | Yigoga pretiosa | Yigoga pretiosissima |
| Yigoga pseudorientis | Yigoga pseudosignifera | Yigoga pygmaea |
| Yigoga robustior | Yigoga romanoi | Yigoga romanovi |
| Yigoga rubra | Yigoga samnitica | Yigoga serraticornis |
| Yigoga signifera | Yigoga sincera | Yigoga spinifera |
| Yigoga spinosa | Yigoga spissa | Yigoga spissilinea |
| Yigoga stigmatula | Yigoga strenua | Yigoga subturbans |
| Yigoga sureyae | Yigoga taftanica | Yigoga tauricola |
| Yigoga toxistigma | Yigoga truculenta | Yigoga turbans |
| Yigoga turcicola | Yigoga unifica | Yigoga wiltshirei |
| Yigoga xanthosemata | Yiinthi | Yiinthi anzsesorum |
| Yiinthi chillagoe | Yiinthi gallonae | Yiinthi kakadu |
| Yiinthi lycodes | Yiinthi molloyensis | Yiinthi spathula |
| Yiinthi torresiana | Yilgarnia | Yilgarnia currycomboides |
| Yilgarnia linnaei | Yim Da-young | Yim Si-wan |
| Yimenosaurus | Yimnashana ceylonica | Yimnashana denticulata |
| Yimnashana lungtauensis | Yimnashana theae | Yimnashaniana jianfenglingensis |
| Yinchie | Yinchie zaohui | Ying ji-1 |
| Yingaresca | Yingaresca absimilis | Yingaresca amabilis |
| Yingaresca amazonica | Yingaresca batesi | Yingaresca bohiensis |
| Yingaresca bowditchi | Yingaresca brevicollis | Yingaresca brevivittata |
| Yingaresca chrysura | Yingaresca colasi | Yingaresca conifera |
| Yingaresca constanzae | Yingaresca cyclopea | Yingaresca devota |
| Yingaresca difficilis | Yingaresca echinoderma | Yingaresca freyi |
| Yingaresca fulvonigra | Yingaresca fuscomaculata | Yingaresca hexarhabdota |
| Yingaresca holosericea | Yingaresca inaequalis | Yingaresca jamaicensis |
| Yingaresca labida | Yingaresca laticollis | Yingaresca maculipennis |
| Yingaresca maculipes | Yingaresca melanocephala | Yingaresca nerea |
| Yingaresca obliterata | Yingaresca obsurofasciata | Yingaresca ornata |
| Yingaresca orthodera | Yingaresca oteroi | Yingaresca pauperata |
| Yingaresca pereirai | Yingaresca poeciloptera | Yingaresca scurrilis |
| Yingaresca spiloptera | Yingaresca terminalis | Yingaresca varicornis |
| Yingaresca venustula | Yingaresca volatilis | Yingaresca wolcotti |
| Yingaresca zezia | Yinghuo-1 | Yinglak Chinnawat |
| Yingluck Shinawatra | Yingshanosaurus | Yinlong |
| Yinshania | Yinshania acutangula | Yinshania furcatopilosa |
| Yinshania henryi | Yinshania paradoxa | Yinshania rivulorum |
| Yinshania sinuata | Yinshania zayuensis | YinYueTai |
| Yirce, Sungurlu | Yiricek, Göksun | Yirmibeşoğlu, Yenice |
| Yiruma | Yitirmez, Gümüşhane | Yitzchak Abadi |
| Yitzhak Ben-Zvi | Yitzhak Navon | Yitzhak Rabin |
| Yitzhak Shamir | Yivdincik, Keşap | Yixianosaurus |
| Yizhousaurus | YKK | Yksdarhus lyneborgi |
| Ylang công chúa | Ylang-ylang | Yläne |
| Yle | YLE | Yleyrodes isoberlinae |
| Yli-Ii | Ylihärmä | Ylikiiminki |
| Ylistaro | Ylitornio | Yllenus |
| Yllenus albifrons | Yllenus albocinctus | Yllenus algarvensis |
| Yllenus aralicus | Yllenus arenarius | Yllenus auriceps |
| Yllenus auspex | Yllenus bactrianus | Yllenus bajan |
| Yllenus bakanas | Yllenus baltistanus | Yllenus bator |
| Yllenus bucharensis | Yllenus caspicus | Yllenus charynensis |
| Yllenus coreanus | Yllenus dalaensis | Yllenus desertus |
| Yllenus dunini | Yllenus erzinensis | Yllenus flavociliatus |
| Yllenus gajdosi | Yllenus gavdos | Yllenus gregoryi |
| Yllenus guseinovi | Yllenus halugim | Yllenus hamifer |
| Yllenus horvathi | Yllenus improcerus | Yllenus kalkamanicus |
| Yllenus karakumensis | Yllenus karnai | Yllenus knappi |
| Yllenus kononenkoi | Yllenus kotchevnik | Yllenus kulczynskii |
| Yllenus logunovi | Yllenus lyachovi | Yllenus maoniuensis |
| Yllenus marusiki | Yllenus mirabilis | Yllenus mirandus |
| Yllenus mongolicus | Yllenus murgabicus | Yllenus namulinensis |
| Yllenus nigritarsis | Yllenus nurataus | Yllenus pamiricus |
| Yllenus pavlenkoae | Yllenus pseudobajan | Yllenus pseudovalidus |
| Yllenus ranunculus | Yllenus robustior | Yllenus rotundiorificus |
| Yllenus saliens | Yllenus salsicola | Yllenus shakhsenem |
| Yllenus squamifer | Yllenus tamdybulak | Yllenus tschoni |
| Yllenus turkestanicus | Yllenus tuvinicus | Yllenus uiguricus |
| Yllenus univittatus | Yllenus uzbekistanicus | Yllenus validus |
| Yllenus vittatus | Yllenus zaraensis | Yllenus zhilgaensis |
| Yllenus zyuzini | Ylvis | YM |
| Ymare | YMCA | YMCK |
| Ymeray | Ymir (thần thoại) | Ymnos eis tin Eleftherian |
