| Name | Sex | Language | Meaning(s) | Original Spelling | Notes |
| Abbey | Female | English 773 names Irish 84 names | Meaning(s) of Abbey: Father of Exaltation 3 names | | Pet form of Abigail |
| Abbie | Female | English 773 names Irish 84 names | Meaning(s) of Abbie: Father of Exaltation 3 names | | Pet form of Abigail. |
| Abe | Male | English 773 names Jewish 12 names | Meaning(s) of Abe: Father 11 names | | Either from Aramaic abba ("father"), or an English and Jewish short form of Abraham. |
| Abilene | Female | English 773 names | Historic name with unknown meaning. | | A region of the Holy Land in the New Testament, of uncertain origin. |
| Ada | Female | English 773 names | Meaning(s) of Ada: Noble 277 names | | Of uncertain origin, possibly a pet form of Adele and similar Germanic names, formed from the element adal ("noble"). It may also be used as a variant of Adah. |
| Adela | Female | English 773 names | Meaning(s) of Adela: Noble 277 names | | Latinate form of Adele. |
| Adelaide | Female | English 773 names | Meaning(s) of Adelaide: High-born 82 names Noble 277 names | | Of Germanic origin. |
| Adele | Female | English 773 names | Meaning(s) of Adele: Noble 277 names | | Of Germanic origin. |
| Adelina | Female | English 773 names | Meaning(s) of Adelina: Noble 277 names | | Latinate form of Adele. |
| Adolphus | Female | English 773 names Swedish 26 names | Meaning(s) of Adolphus: Noble Wolf 1 names | | |
| Agatha | Female | English 773 names | Meaning(s) of Agatha: Good 110 names Honorable 53 names | | From Greek agathos. |
| Aggie | Female | English 773 names Scottish 76 names | Meaning(s) of Aggie: Good 110 names Holy 8 names Honorable 53 names Pure 180 names | | Pet form of Agnes and Agatha. |
| Agnes | Female | Dutch 36 names English 773 names German 170 names Scandinavian 81 names | Meaning(s) of Agnes: Holy 8 names Pure 180 names | | |
| Aileen | Female | English 773 names Scottish 76 names | Historic name with unknown meaning. | | Variant spelling of Eileen, from Aveline, from Avis, of uncertain meaning. In Latin avis means "bird", but the name Avis is likely from another origin. |
| Ainsley | Unisex | English 773 names Scottish 76 names | Meaning(s) of Ainsley: One Clearing 1 names One Wood 1 names | | Originally a surname. |
| Alan | Male | English 773 names Scottish 76 names | Meaning(s) of Alan: Rock 34 names | | Of Celtic origin. |
| Alana | Female | English 773 names | Meaning(s) of Alana: Rock 34 names | | Feminine form of Alan. |
| Alanda | Female | English 773 names | Meaning(s) of Alanda: Rock 34 names | | From Alan and Amanda. |
| Alannah | Female | English 773 names | Meaning(s) of Alannah: Rock 34 names | | Variant spelling of Alana. |
| Albert | Male | English 773 names French 120 names | Meaning(s) of Albert: Bright 39 names Famous 27 names Noble 277 names | | |
| Alec | Male | English 773 names Scottish 76 names | Meaning(s) of Alec: Defender of Humanity 37 names | | From Alexander. |
| Alethea | Female | English 773 names | Meaning(s) of Alethea: Truth 6 names | | From Greek. |
| Alex | Unisex | English 773 names | Meaning(s) of Alex: Defender 17 names Defender of Humanity 37 names | | Short form of Alexander, Alexandra or Alexis. |
| Alexa | Female | English 773 names | Meaning(s) of Alexa: Defender 17 names Defender of Humanity 37 names | | Short form of Alexandra or variant of Alexis. |
| Alexander | Male | Dutch 36 names English 773 names German 170 names Hebrew 21 names | Meaning(s) of Alexander: Defender of Humanity 37 names | | Latin form of the Greek name Alexandros. |
| Alexandra | Female | English 773 names Scandinavian 81 names | Meaning(s) of Alexandra: Defender of Humanity 37 names | | Feminine form of Alexander. |
| Alexandrina | Female | English 773 names | Meaning(s) of Alexandrina: Defender of Humanity 37 names | | |
| Alexia | Female | English 773 names German 170 names | Meaning(s) of Alexia: Defender 17 names | | |
| Alexis | Unisex | English 773 names German 170 names | Meaning(s) of Alexis: Defender 17 names | | |
| Alice | Female | English 773 names French 120 names | Meaning(s) of Alice: High-born 82 names Noble 277 names | | |
| Alicia | Female | English 773 names Spanish 108 names | Meaning(s) of Alicia: Aristocratic 4 names High in Status 59 names Noble 277 names | | A form of Alice, derived from Germanic word Adalheidis. |
| Alicia | Female | English 773 names Spanish 108 names | Meaning(s) of Alicia: High-born 82 names Noble 277 names | | A form of Alice. |
| Alina | Female | English 773 names German 170 names | Meaning(s) of Alina: High-born 82 names Noble 277 names | | Variant of Aline. |
| Alinda | Female | English 773 names German 170 names | Meaning(s) of Alinda: Noble 277 names Soft 108 names Tender 63 names | | A combination of Alina and Linda, or a form of Adelinde. |
| Aline | Female | English 773 names French 120 names | Meaning(s) of Aline: High-born 82 names Noble 277 names | | |
| Alisa | Female | English 773 names | Meaning(s) of Alisa: Aristocratic 4 names High in Status 59 names Noble 277 names | | Variant of the name Alissa. |
| Alison | Female | English 773 names French 120 names Scottish 76 names | Meaning(s) of Alison: High-born 82 names Noble 277 names | | Norman diminutive form of Alice. |
| Alissa | Female | English 773 names | Meaning(s) of Alissa: Aristocratic 4 names High in Status 59 names Noble 277 names | | Variant of Alicia. |
| Alissa | Female | English 773 names | Meaning(s) of Alissa: High-born 82 names Noble 277 names | | Variant of Alicia. |
| Alix | Female | English 773 names | Meaning(s) of Alix: Defender 17 names Defender of Humanity 37 names | | Variant of Alex. |
| Allan | Male | English 773 names Scottish 76 names | Meaning(s) of Allan: Rock 34 names | | Variant of Alan. |
| Allegra | Female | English 773 names Italian 145 names | Meaning(s) of Allegra: Cheerful 42 names Jaunty 1 names | | |
| Allen | Male | English 773 names Scottish 76 names | Meaning(s) of Allen: Rock 34 names | | Variant of Alan. |
| Allie | Female | English 773 names | Meaning(s) of Allie: High-born 82 names Noble 277 names | | Pet form of Alison. |
| Allina | Female | English 773 names German 170 names | Meaning(s) of Allina: High-born 82 names Noble 277 names | | Variant of the name Alina. |
| Ally | Female | English 773 names | Meaning(s) of Ally: High-born 82 names Noble 277 names | | Variant of the name Allie. |
| Alma | Female | English 773 names | Meaning(s) of Alma: Kind 165 names Nourishing 1 names | | Of uncertain origin, but can be considered the feminine form of Latin almus ("nourishing"). |
| Aloisia | Female | English 773 names German 170 names | Meaning(s) of Aloisia: Warrior 62 names | | Feminine form of Aloysius. |
| Aloysius | Male | Dutch 36 names English 773 names German 170 names | Meaning(s) of Aloysius: Warrior 62 names | | |
| Alpha | Unisex | English 773 names | Meaning(s) of Alpha: Excellent 136 names Prime 4 names | | Taken from the first letter of the Greek alphabet. |