This is another tough one to answer quickly. In Greek, the letter K is "Kappa" - the hard K sound. In Latin, there was no "K". They used the letter "C" for this sound. For some reason, as Latin changed, the hard "K" was replaced with the soft "S" sound. As an example, we pronounce Cicero as "SIS-er-oh" when in fact, it was "KIK-er-oh".
So, most of the Greek mythological names have been "Latinized", so that the Romans would understand their meaning. Whenever there was a "K", it usually becomes a "C" when Latinized (unless it starts with CH, which is actually the letter Chi or "X"). Those names that start with K were ones not observed by the Romans.
As an example, Cronus was actually Kronos. Here are the ones I know:
Coeus (Κοῖος - Koios), Crius (ΚÏεῖος - Kreios), Clymene (ΚλυμÎνη - Klemene), Cottus (Κόττος - Kottos), Caerus (ΚαιÏός - Kairos), Corus (ΚόÏος - Koros), Kakia (Kακία), Kalokagathia (Καλοκαγαθία), The Keres (ΚῆÏες), Koalemos (Κοάλεμος), Kratos (ΚÏάτος), Kydoimos (Κυδοιμός), Clotho (Κλωθώ - Klotho), Cerberus (ΚÎÏβεÏος - Kerberos), Keuthonymos (Κευθόνυμος), Kokytos (Kωκυτός), Ceto (Κῆτώ - Keto), Cymopoleia (Κυμοπόλεια - Kymopoleia), Karkinos (ΚαÏκίνος), Celaeno (Κελαινώ - Kelaino), Cabeiri (ΚάβειÏοι - Kabeiroi), The Cercopes (ΚÎÏκοπες - Kerkopes), Comus (Κόμος - Komos), Corymbus (ΚόÏυμβος - Korymbos), The Curetes (ΚουÏÎτες - Kouretes), Cybele (ΚυβÎλη - Kybele), Cladeus (Κλάδεος - Kladeos), Cocytus (Kωκυτός - Kokytos), and of course, the Cyclopes (ΚÏκλωπες - Kyklopes)
Aphrodite, the Greek goddess of love and beauty.
Hera is the Greek Goddess of love and marriage.
Gaea or Gaia aka Earth or the Goddess of Earth
The Greek name of the Greek goddess Athena is Athena. In Roman mythology the goddess Athena was associated with Minerva.
Isis is the Greek goddess of rainbows.
Hecate
There is no Greek goddess whose name starts with the letter "W" in traditional Greek mythology.
Aphrodite. She is the Greek goddess of love and beauty.
No
Hemera was the Greek goddess of daytime. Her name begins with the letters He.
Hestia (Greek Goddess of the Hearth)
No.
Aphrodite, the Greek goddess of love and beauty.
Nike.
This is easy hestia goddess of hearth
Hera is the Greek Goddess of love and marriage.
Artemis is the greek goddess who has a 7 letter name. She is Apollo's twin sister. She was the lady of wild things, the huntress, maiden goddess, and moon goddess.