M o v e s

Sharingan It's not a jutsu, but its Kakashi's trademark and what makes him one of the best. The Sharingan is a special eye that is able to copy and mimic an enemy's moves. Kakashi always has this eye covered with his forehead protector because many ninjas seek it out.
1,000 Years of Pain I couldn't resist putting this one in...its too funny NOT to put it in ^^. Not really a jutsu, but a really super duper poke up the ass he gave Naruto during his exam.
Shinju Zanshu no Jutsu A technique he showed Sasuke while the team was doing their exam test. Kakashi uses Earth Element to burrow quickly underground and pull down his enemy into the ground neck down...sort of like a "decapitation". Not really as much of a powerful jutsu as it is hilarious.
Kawarimi no Jutsu A substitution technique when your enemy attacks you but you switch an object or person in your place with your image to fool them. Kakashi first demonstrates this when Naruto attacks him with his clones. This move seems to be the most popular yet basic skill of Ninjas.
Genjutsu This technique he used on Sakura to hypnotize her into believing she saw Sasuke bleeding and dying. Sakura faints from it ^^. Kakashi used this hypnotic technique on Sakura during her exam and on Zabuza to finish off their first fight.
Earth Tracking Fang no Jutsu A summoning where he specially summons a pack of dogs into battle (they're all clothed in ninja gear too ^^) and they use their special smelling skills to hone down on the enemy and bite down on them, to prevent them from moving. Kakashi shows this move when he's fighting against Zabuza and the mist was too thick for him to catch him, so he summoned his dogs to sniff Zabuza out and capture him with the scent of Kakashi's blood on his weapons.
Raikiri Demonstrated when he fought Zabuza, its when Kakashi gathers so much Chakra in the palm of his hand that it becomes visible and can punch through anything...in this case Haku.
Kage Bunshin no Jutsu The special cloning technique Naruto secretly mastered that makes it instead of cloning your body with illusion, it's actually a cloning technique where you split into multiple bodies. Kakashi demonstrates this jutsu after his fight with Zabuza.
Fuuin no Jutsu Not all of Kakashi's techniques are for offense. This technique seals curses to prevent them from spreading throughout the body and harming the host any further. Kakashi demonstrates this by sealing up Sasuke's curse mark after his battle for his chunnin exams.
Chidori You don't see Kakashi actually demonstrating this, but he teaches Sasuke how to. Its pretty much like the Raikiri when so much Chakra is gathered to the palm of your hand it's visible...only the Chidori's chakra is so great that you can hear it coming towards you.