Bukkit

A simple solution to PVP

Adds essential pvp commands and features to your server. Everything is configurable

Simple flight control with many PVP capabilities.

allow players to toggle PvP for themselves

A simple Free For All PVP Plugin.

Enhanced combat for PVP and PVE

Handle PvP for groups and players

ForgeDeaths is a lightweight deaths plugin designed for PVP focused servers

Disable PvP in Creative mode

ElementalWarfare adds a, rather explosive, twist to PVP!

FightTag, a simpler way to control PVP.

A PVP and Events Manager

Place a block anywhere and disable PvP around it.

TopPVP allows you to keep track of your kills and deaths - PVP Plugin

This plugin enhances pvp on pvp servers!

Choose what ingame hours you want PvP enabled.

PVPRewards

Count your PvP kills and deaths

Weapons Cooldown and other features like special abilities and damages control, include spout support

Allows players to individually control whether PvP is enabled for themselves

PvP Shield protects players from PvP on respawn.

Know who attacked you and with what they attacked with. [PVP]

Several tools and commands for pvp

MCSL - The global PVP / Sports Solution

Players don't drop items on death anymore, but still lose the items - Designed with Kit PvP Servers in mind