The eighteen contributions in this volume are based on papers presented at the 6th International Conference on Language Variation in Europe (ICLaVE 6), which was held at the University of Freiburg, Germany, from June 29 to July 1, 2011. The volume includes plenaries by Sjef Barbiers (`Where is syntactic variation?') and Arnulf Deppermann/ Stefan Kleiner & Ralf Knoebl (`Standard usage': Towards a realistic conception of spoken standard German). In addition, the editors have selected 16 papers ranging over a wide field of languages/varieties and topics. The languages and varieties covered are Belarusian, British English, Catalan, Dutch, Gaelic, Gallo-Italic, Greek, Italian, Occitan, Rhaeto-Romance, Russian, Scottish English, Swedish, Turkish, and several varieties of German. The majority of the papers deal with phonetic and phonological variation (Caro Reina; Deppermann, Kleiner and Knoebl; Katerbow; Moosmuller and Scheutz; Schutzler; Schleef; West; Zeller; Ziegler), but morphological variation (Cornips and Hulk; Dal Negro), morphosyntactic variation (Melissaropoulou, Themistocleous, Tsiplakou and Tsolakidis), and syntactic variation (Barbiers; Hakansson; Rothmayr) are also represented. Additional papers deal with code-switching.